名词
中文翻译：Unknown
同义词：
['three-hole pulley', 'three-point pulley']
例句：
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1. The car's engine is controlled by a three-hole pulley system.
汽车的引擎由一个三孔滑轮系统控制。
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2. The heavy machine used for cutting wood has a three-hole pulley.
用于砍木头的重型机器有一个三孔滑轮。
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3. The engineer adjusted the three-hole pulley to increase efficiency.
工程师调整了三孔滑轮以提高效率。