| 单词 | idle pulley |
| 例句 | This serves to drive a belt which, passing over a series of idle pulleys, as will be seen by reference to Figs. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z To maintain equal tension of belt at whatever angle the cutter may be set, the idle pulley b2 acts as a belt tightener, being carried by the rods t and t1. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z |
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