treadles

treadles

1. The pistons go up and down as a person stands on lever devices , -- treadles , -- and uses a natural walking motion.

人站在杠杆设置踏板上来回走动，活塞就会上下移动。

2. The brickmaker treadles over clay to pick out the stones.

制砖工人踩踏泥土以提炼石头。

3. Small children sometimes stand with their parents on the treadles.

小孩子有时会和父母一起站在踏板上。

4. The piecedence pistons go up and down as a person stands on levor lever devices , trandles -- treadles -- and uses a netrual natural walking motion.

当一个人站到那个杠杆装置上即踏板上并有规律的（来回走）动时活塞会上下（移）动。

5. The pistons go up and down as a person stands on liver lever devices -- treadles -- and uses a natural working walking motion.

当一个人站在杠杆装置上并很自然的踩踏时，活塞就会上下的运动。

6. The pistons go up and down as a person stands on lever devices -- treadles -- and uses a natural walking motion.

当人站在杠杆即踏板上自然走动时活塞会上下移动。

7. The pistons go up and down as a person stands on ? lever devices ?-- treadles -- and uses a natural walking motion.

当人站在杠杆设备也就是踏板上，并自然走动时，即可使活塞往复运动。

8. The pistons go up and down as a person's person stands on lipper lever devices , -- treadles -- and uses a natural walking motion.

活塞上下运动就像人站在杠杆设备上，踏动踏板，利用天然的推动力。

9. One finds that the verticle treadle loom has a set of ingenious mechanisms, such as the two treadles driving the main axle through the rigid st...

这一复原将为汉代斜织机的研究带来启发。