名词
中文翻译：旋转式扩张器
同义词：
['rotary pump', 'rotary valve', 'rotary screw']
例句：
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1.The rotary expander is used to increase the pressure in a pipeline system.
旋转式扩张器用于提高管道系统中的压力。
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2.The rotary expander was designed to improve the efficiency of the oil extraction process.
旋转式扩张器被设计用来提高石油提取过程的效率。
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3. The rotary expander has become an essential tool for many industries due to its ability to handle large volumes of fluids.
由于其处理大量流体的能力，旋转式扩张器已成为许多行业的重要工具。