基本解释[经济学]双列往复压缩机词组短语短语duplex vertical reciprocating compressor 双缸立式往复压缩机duplex x reciprocating compressor 双列往复压缩机duplex tandem steam -driven reciprocating compressor 双列串联蒸汽驱动式往复压缩机专业释义经济学双列往复压缩机