例句與造句

1. A Speedwalk consisted of a flat conveyor belt riding on a series of rollers, or a flat slippery surface, moving at ( approximately half the speed of walking ).
2. A Carveyor consisted of many small cubicles or cars carrying ten people riding on a flat conveyor belt from point A to point B . The belt rode on a series of motorized rollers.
3. During the early days of the excavations, forensic anthropologists brought in heavy equipment, including two 50-foot ( 15-meter ) flat conveyor belts and soil sifters to find traces of remains.
4. It's difficult to find flat conveyor belt in a sentence. 用flat conveyor belt造句挺難的