Thaum lub sijhawm ua haujlwm ntawm cov khoom siv hluav taws xob, cov rwb thaiv tsev yuav maj mam deteriorate nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb, kub thiab mechanical vibration rau lub sij hawm ntev, nrog rau tag nrho cov deterioration thiab ib feem ntawm deterioration, ua rau muaj kev puas tsuaj.qhov tsis xws luag.Ntau yam kev tiv thaiv kev sim, e...
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