The primary pipe is a flexible annularly corrugated pipe made from stainless steel which is flexible and nearly impermeable to fuels. |
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The nexine is an ultrafilter membrane, which is impermeable to most proteins. |
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This does not happen, however, because the cell membrane itself is impermeable to ions like sodium and potassium. |
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However, the inside lining of the heart is smooth and impermeable to the oxygen tied to the red cells. |
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Lacquer, the sap of a tree, has to be applied in thin layers over a long period to build up a surface that is impermeable to liquids. |
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The channel is impermeable to anions but is permeable to a diverse group of cations. |
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But even watertight concrete is not impermeable to the passage of moisture. |
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The construction of high-density housing will make much of the ground impermeable and thus will reduce recharge to the moraine. |
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Thus, the soil liner significantly losses its effectiveness as an impermeable barrier. |
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Some people are impermeable to information or wholly out of touch with the topical subjects of the day. |
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The resulting concrete is said to be impermeable to the migration of water or waterborne chemicals. |
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In extreme cases, the resulting dolostones are essentially non-porous and impermeable. |
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He developed a mattress cover which is free of the suspected chemicals and impermeable to gasses. |
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It creates a flexible seal that is completely impermeable to water, dust, insects, rodents and vibration. |
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Because this layer should permit passage of fluid, impermeable dressings are not recommended. |
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The gasket has a core that is impermeable to liquids, with a first side and a second side opposite the first side. |
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I had noticed that gumboots were impermeable to water from the outside, and deduced that they must also be impermeable from the inside. |
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Also, old clay pots can build up enough fertilizer and salts to make them impermeable to air and water. |
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This will render the topo impermeable, yet still allow you to write notes on it with a ballpoint pen. |
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The coastline seemed impermeable, but finally, through bravery and daring, the explorer found his way in, and the treasure was revealed. |
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Reverse osmosis is a process for desalting water that uses membranes that are permeable to water but essentially impermeable to salt. |
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Piping is favoured by high infiltration rates, pre-existing cracks and voids, an impermeable sub-layer, steep gradients, and erodible materials. |
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Rigid and impermeable boundaries maintain and protect our disconnection from others. |
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A permeable seed imbibes water readily when available, while an impermeable one does not take up water for days or longer. |
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They must be dismantled on an impermeable surface to avoid contaminating the ground. |
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The upper reservoir has a permeable bottom and contains forest litter, while the lower reservoir is impermeable. |
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In second place, an area with sandstone tiles with a good impermeable seal in the joints can be considered. |
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Paint the wall first with an impermeable concrete paint or cover it with polyethylene. |
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The plastic is hydrophobic and thus impermeable to ions and water. |
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Laminated aluminium foil will be also a very good impermeable thin interleave. |
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Nine mighty aqua jets propel water at the user, who lies half-sunken into the thing, but conveniently separated from the water by an impermeable surface. |
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Containment is provided by an impermeable liner and all drainage and decant waters are collected for treatment in the mine water treatment plant. |
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The material must be continuous and virtually impermeable to air. |
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In such cases measures to minimise emissions, such as the use of virtually impermeable films for soil fumigation, should be specified. |
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If only larger stones are available, the dam should be lined with impermeable material. |
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This impermeable paper stops the florist requiring a sheet of both paper and cellophane. |
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Picture 1: An absorbing, soft and impermeable arm sleeve reinforcement to minimize risk of strike through. |
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Vernal pools are shallow depressions in the natural topography that have hard pan, impermeable hard pan, beneath them and when the winter rains come they fill with water. |
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Boats for 1 or 2 occupants are hermetically sealed by means of a piece of impermeable fabric or neoprene. |
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To operate, it requires an inner membrane system that is impermeable to protons, except through ATP synthase or other complexes in a regulated fashion. |
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This may involve professional help, as your roof has to be strong enough to support the mat of plants, and it will also require an impermeable membrane underneath. |
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Unerasable from the corporate memory is the disaster of Kidder Peabody a 1990s foray into the impermeable culture of investment banking. |
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This employs high-pressure pumps to force the water from brine through a membrane that is impermeable to salt. |
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Sedimentary rock containing non-potable water, located at least 1,000 meters underground, overlaid by impermeable sedimentary cap rock. |
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Polish typically interferes with the procedure by creating an impermeable barrier on the nail bed. |
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If necessary, line the outside face of dams with heavy poly-plastic to make them impermeable to water. |
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By contrast, oil flows much more sluggishly through impermeable tight rock. |
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Some have succeeded in making their cell walls impermeable to antibiotics. |
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All bullies are victims, they all tread on others to make themselves feel safer, and once Alex seemed impermeable she was the must-have friend and defender. |
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Compart® eliminates the need for troughed conveyors and enables impermeable, clean handling. |
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The searing heat also fuses the soil into an impermeable layer that increases runoff and stream sedimentation and slows the forest's ability to recover. |
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A century of data collected by oil companies suggest it is impermeable rocks such as granite that are the most effective reservoirs of heat. |
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Its prime ingredient, silica, which is essentially glass, can withstand very high temperatures and vitrifies to form a very strong and impermeable product. |
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However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. |
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Some aquifers, however, lie beneath layers of impermeable materials. |
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This would have been impermeable and thus forced the development of more sophisticated respiratory apparatus in the form of gills. |
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Just because you are part of a social-justice movement, which is how I think of feminism, that doesn't mean you are some brick wall of impermeable stalwartness in every area. |
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Under this rock layer there is compact crystalline rock which, as a result of lithification and the high pressure to which it is subjected, is practically impermeable. |
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A porous and permeable subsurface rock layer that contains a separate accumulation of petroleum that is confined by impermeable rock or water barriers and is characterized by a single pressure system. |
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The porous and permeable rock layer that contains these fluids is covered by an impermeable cap rock-often salt or shale-that does not let them pass through. |
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These rock formations, which are too impermeable for the gas to flow freely, require expertise and cutting-edge technologies to coax out their valuable resource. |
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The under soil below the arable layer, is made up of sand and water with the ground water meeting at 1m60 and then several impermeable layers of clay holding slightly salty water. |
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Scarification L' wrap seeds can be so robust it is almost impermeable. |
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To control an allergic reaction to dust mites, the use of dust mite impermeable covers for mattresses and pillows is recommended, as well as removing carpets from the child's bedroom. |
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In the case of unconfined groundwater, the upper surface is directly subject to atmospheric pressure, while in the case of confined groundwater, the upper surface is covered by a semi-permeable or impermeable formation. |
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Salt rock fulfils the requirement to be impermeable to gases and liquids, to be able to encase the waste because of its convergent behaviour and to confine it entirely at the end of the transformation process. |
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The mixture of oil and water forms an impermeable film that prevents oxygen from entering, which causes the death by asphyxia of the micro-organisms that purify the wastewaters. |
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The story shifts to the US and centres on the surviving brother, who has married his brother's wife, each living fractured lives within impermeable carapaces. |
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Others blame urbanisation, because growing cities need more asphalt and other impermeable surfaces which will not absorb water that would once have soaked into the soil. |
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This awareness of belonging to a cultural unit and a civil society that go beyond national borders, and those even more impermeable language barriers, is not then new to Spain. |
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The result is a very durable, dense and virtually impermeable surfacing with excellent resistance to deformation and wear, which provides noise reduction benefits as an added bonus. |
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Below the top layer is an impermeable protective film, which forms a moisture barrier and prevents the mattress from becoming a breeding ground of dust mites and bacteria. |
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One is that most of the geologists who have studied the area say there is no such thing as an impermeable layer, and that in fact there is seepage. |
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But there is a group of 13-14 members of the Political Bureau, and a hundred or so members of the Central Committee who are completely impermeable to change. |
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On poorly drained impermeable areas of millstone grit, shale or clays the topsoil gets waterlogged in winter and spring. |
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The mole plough allows underdrainage to be installed without trenches, or it breaks up deep impermeable soil layers that impede drainage. |
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Thus, creating conductive fractures in the rock is instrumental in extraction from naturally impermeable shale reservoirs. |
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One important use of glaze is to render porous pottery vessels impermeable to water and other liquids. |
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The development of ceramic glaze which makes it impermeable makes it a popular and practical form of pottery making. |
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During the ice ages permafrost blocked the caves with ice and frozen mud and made the limestone impermeable. |
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Portland cement has proven to be incompatible with lime mortar because it is harder, less flexible, and impermeable. |
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Streams flowing from higher impermeable slopes sink into the ground when they reach permeable limestone. |
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The anticline is composed of a series of sandstone rock beds and an impermeable rock cap under which vast reserves of oil and gas are trapped. |
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Due to the impermeable nature of the rock, blanket bogs and mires form, and drier areas have wet and dry heaths and acid grasslands. |
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The daily hardships demand an impermeable skin for survival. |
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It was consensus, the impermeable devotion to an article of faith. |
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Vehicles are stored on an impermeable surface until they are completely depolluted. |
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But the relevant portions of those witnesses' memory were hermitically sealed behind an impermeable wall of forgetfulness. |
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The pad can also include deodorizing agents, an impermeable layer, or a middle absorbent layer for absorbing moisture from or applying treatments to a pet. |
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This phase was considered to be a mesomorphic phase, characterized by conformationally ordered regions, impermeable to the dichloromethane at low solvent activity. |
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The oil becomes trapped along with water and natural gas by a caprock that is made up of impermeable barrier such as an impermeable stratum or fault zone. |
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Evaporite rock, such as gypsum, anhydrite, and rock salt are nonporous, but do provide a highly impermeable barrier to the migration of subsurface fluids. |
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The additive is called Quoral, and it works by creating impermeable overlapping platelets in the walls of a monolayer HDPE bottle to inhibit passage of gas. |
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