| Generally described, the dual air-current burner consists of two cylindrical tubes of different diameters and different lengths. |
| The company also relies on laser micrometers to accurately measure tube diameters to five decimal places. |
| Information on aperture type, exine sculpturing and the diameters of pollen grains were cited from Liang. |
| The inner diameters of the seals were adapted to the diameters of the basal parts of root systems and adjusted by screws. |
| An aerogel is a porous network of silica strands with diameters of a few nanometres. |
| Picard devised a micrometer to measure the diameters of celestial objects such as the Sun, Moon and planets. |
