Kuv yuav tsum xyuam xim rau dab tsi ua ntej txhim kho pneumatic npauj npaim valve?
Xyuas tom qab lub pob valve ntaus ntawv
Kev npaj ua haujlwm ntawm lub pob valve ua ntej kev teeb tsa
Kev ntsuas ntsuas thiab kev hloov kho ntawm hluav taws xob npauj npaim valve
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm daim tshev valve
Hom rooj vag li qub