| 单词 | jackshaft |
| 释义 | jackshaft /jak"shaft', -shahft'/, n. Mach. 1. Also called countershaft. a short shaft, connected by belting, gears, etc., that transmits motion from a motor or engine to a machine or machines being driven (distinguished from main shaft). 2. a shaft on which an idle wheel or fairlead turns. [1895-1900; JACK1 + SHAFT] |
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