压缩机叶片compressorbleed: 从压气机中抽气compressorandexpander: 压缩与扩张器compressorcasingcover: 压缩机罩盖compressor; centrifugal: 离心式压缩机compressorcharacteristiccurve: 压缩机特性曲线下载手机词典可随时随地查词查翻译