名词
中文翻译：滑轮块
同义词：
['滑轮，滚轮，滚筒，滑块例句：1. The pulley block is used to lift heavy objects.（滑轮块用于提升重物。）']
例句：
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1. The pulley block is used to lift heavy objects.
滑轮块用于提升重物。
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2. The engineer designed the pulley block with precision.
工程师设计了精确的滑轮块。
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3. The pulley block is essential for the operation of the machine.
滑轮块是机器运行所必需的。