Tsheb BCM, Askiv lub npe ntawm lub cev tswj cov qauv, xa mus ua BCM, tseem hu ua lub khoos phis tawj lub cev
Raws li ib tug tseem ceeb maub los rau qhov chaw ntawm lub cev, ua ntej rov tshwm sim ntawm cov tsheb hluav taws xob tshiab xws li teeb pom kev zoo xws li teeb tsa lub cev, wiper (cua txias, lub qhov rooj kaw lus thiab lwm yam.
Nrog rau kev txhim kho ntawm cov tshuab hluav taws xob hauv tshuab hluav taws xob, cov haujlwm ntawm BCM kuj tseem nthuav dav thiab nce ntxiv, nws muaj kev sib tw tsis xws luag (IMO)
Txhawm rau kom pom tseeb, BCM yog tsuas yog los tswj cov cuab yeej siv hluav taws xob tsawg hluav taws xob hauv lub cev, thiab tsis koom nrog lub zog hluav taws xob.
