| Another 3,500 tractor-trailer trips occur daily as containerized freight is moved between the yards. |
| Yes, just turning into the bridge approach, two tractor-trailer combos, preceded and followed by white cars. |
| A larger, newer tractor-trailer rig will run close to half a million dollars. |
| On one side of the road was a face of granite, on the other was a 1,000-foot cliff, and a fully-loaded tractor-trailer rig was steaming up toward them in the oncoming lane. |
| In addition to training students to operate construction equipment, some schools also train operators to drive dump trucks and tractor-trailer lowboys. |
| His company runs six tractor-trailer rigs, all five-axle dump trucks. |
