名词
中文翻译：双调节式滑轮
同义词：
['double-acting sheave', 'double-acting pulley例句：1. The engineer designed a double adjustable sheave to increase the efficiency of the machinery.（工程师设计了一个双调节式滑轮，以提高机械的效率。）']
例句：
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1. The engineer designed a double adjustable sheave to increase the efficiency of the machinery.
工程师设计了一个双调节式滑轮，以提高机械的效率。
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2.The double adjustable sheave was used to adjust the tension on the ropes.
双调节式滑轮被用来调整绳索的张力。
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3.The double adjustable sheave is essential for maintaining the stability of the construction site.
双调节式滑轮对于保持建筑工地的稳定性至关重要。