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vacuum compressor
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vacuum compressor
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真空压缩机
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vacuum compressor
真空压缩机
抽出密闭工艺设备中的气体,使其形成负压的同时对抽出的气体进行压缩的装置。
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History of Chinese Music
History of Chinese Music and Literature
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更新时间:2025/4/26 10:34:49