单词	lean gas riser
释义	lean gas riser 贫气提升管
随便看	direct connections direct connection switchboard direct connection system direct connection telephone direct connection to the internet direct connect modem direct-connect modem direct connector direct consequence direct consideration direct consideretion direct consignment direct constituent direct constraint procedure direct construction direct construction cost direct consume coefficient direct consume of material direct consuming matrix direct consuming parameter direct consumption direct consumption coefficient direct consumption coefficients direct consumption matrix direct consumption sugar