two-stage single-acting compressor
...定式空气压缩机 two-stage rotary air compressor 二级旋转式空气压缩机 Two-stage Single-acting Compressor 双级单作用压缩机 ..
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...stageaircompressor 双级活塞式压缩机 Two-stage reciprocal compressor 双级单作用压缩机 two-stage single-acting compressor ; acting compressor ..
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