ratchet gear的用法和樣例:
例句
- A ratchet allows a heavy weight to be raised in short successive stages.
棘輪可在簡短連續的步驟內就把一個重物抬高。
- As the piston descended, a ratchet engaged the piston rod and engine shaft and thus power was transmitted.
當活塞下行時,棘輪連接活塞桿和發動機軸,因此將功率輸送出去。
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