名词
中文翻译：乙烯
同义词：
['ethylene-propylene filler', 'ethylene-propylene gasket']
例句：
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1. The newmaterial is used in the production of ethylene-propylene packing.
这种新材料用于生产乙烯-丙烯填充物。
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2. The ethylene-propylene packing is designed to prevent leaks during transportation.
乙烯-丙烯填充物设计用来在运输过程中防止泄漏。
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3.The quality of the ethylene-propylene packing directly affects the performance of the machinery.
乙烯-丙烯填充物的质量直接影响到机械的性能。