名词
中文翻译：滑轮壳
同义词：
['spool case', 'pulley housing例句：1. The engineer used anew type of pulley casingto improve the efficiency of the machine.（工程师使用一种新型的滑轮壳来提高机器的效率。）2. The old wooden pulleycasing was worn out and needed tobe replaced.（旧木制滑轮壳磨损严重，需要更换。）3. Theengineer designed a new pulley casing that couldwithstand higher loads.（工程师设计了一种新型的滑轮壳，能够承受更高的负载。）']
例句：
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1. The engineer used anew type of pulley casingto improve the efficiency of the machine.
工程师使用一种新型的滑轮壳来提高机器的效率。
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2. The old wooden pulleycasing was worn out and needed tobe replaced.
旧木制滑轮壳磨损严重，需要更换。
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3. Theengineer designed a new pulley casing that couldwithstand higher loads.
工程师设计了一种新型的滑轮壳，能够承受更高的负载。