Lub "lub taub hau twj tso kua mis" yog hais txog cov ntsiab lus tseem ceeb ntawm lub twj tso kua mis -ib txwm hais lus, nws yog lub twj tso kua mis compression mechanism- thiab kuj tseem tuaj yeem raug xa mus rau tshwj xeeb raws li lub taub hau sib nqus, lub taub hau centrifugal, thiab lwm yam. Ib lub "twj", uas yog, yog cov cuab yeej siv tshuab tsim los tsim cov kua dej ntws los ntawm compression, ua kom cov kua thauj mus rau qhov siab thiab qhov deb.
Lub taub hau twj tso kua mis yog ib qho tseem ceeb ntawm lub twj tso kua mis; Lub twj tso kua mis ua tiav feem ntau suav nrog lub taub hau, lub cev muaj zog, ntsaws ruaj ruaj, ncej, impeller, diffuser, thiab lwm yam khoom. Lo lus "lub taub hau twj tso kua mis" sawv cev rau lub tswv yim tshwj xeeb tshaj plaws, feem ntau qhia txog kev sib dhos tshwj xeeb lub luag haujlwm rau compressing cov kua. Muab ntau txoj hau kev compression koom nrog, lub taub hau twj tso kua mis tau muab faib ua ntau yam nthuav dav, suav nrog hom xws li centrifugal, iav, turbine, diaphragm, thiab plunger twj taub hau. Cov twj tso kua mis, ntawm qhov tod tes, yog dav categorized raws li lawv cov kua conveyance mechanisms -xws li centrifugal twj, iav twj tso kua mis, thiab reciprocating twj- thiab ua hauj lwm rau ntau yam kev siv.

