Cov teeb meem dab tsi yuav tsum tau cov kev tuav pov hwm ntawm kev txhaj tshuaj molding raug hloov?
Lub tes tsho ntawm sab nrauv thiab sab nraud muaj qhov khaus khaus, khaus lossis tawg.
Parliamentary balloon-tuav tau puas lawm.
Ntau lub suab nrov yog tawm thaum lub npas kab npoo rov qab.Los ntawm lub tsho thiab txheej tsho hauv qhov axial thiab radial clearance yog loj.
Cov pob zeb ntawm lub puab tsaig ntawm sab hauv puab lub puab tsaig sab nraud ntawm sab txheej txheej sab txheej txheej txheej sab txheej txheej txheej sab txheej txheej ntawm sab txheej txheej txheej ntawm cov kabmob thiab lwm qhov chaw yog tiag hnav thiab puas ntsoog, thiab lub ntsej muag ua haujlwm tau raug hnav thiab puas ntsoog.
Siv dej ntws hnyav los ntawm lub npas pob khoom los yog cov menyuam hnav.
Thaum muaj teeb meem saum toj no, cov ris tsho tshiab yuav tsum muab hloov raws sij hawm.