Dab tsi yog cov ntsiab lus noo noo ntawm cov ntoo ntoo tshiab tshiab (GVDA Ntoo noo noo ntsuas GD153 tuaj yeem pab koj ntsuas qhov mositure ntawm ntoo tshiab)
Freshly txiav ntoo thuv muaj cov dej noo ntawm 40 feem pua.
Feem ntau, cov dej noo ntawm cov ntoo tsuas yog tom qab poob yog li 35 feem pua -60 feem pua, thiab cov dej noo ntawm cov rooj tog ntoo tiav, cov plag tsev, cov txee, thiab lwm yam yuav tsum tau tswj ntawm 8 feem pua -12 feem pua , thiab cov ntsiab lus noo noo ntawm sab nraum zoov los tiv thaiv corrosion ntoo yog tswj ntawm 13 feem pua -20 feem pua ua ntej kev teeb tsa. Ua haujlwm zoo tshaj sab laug thiab sab xis.
Tom qab raug txiav, nyob rau hauv kev tswj ntawm lub ziab ceev ntawm cov ntoo (kom ntseeg tau tias cov dej noo gradient ntawm cov ntoo sab hauv thiab sab nraud yog nyob rau hauv ib tug tej yam ntau yam), cov ntoo yog qhuav mus rau qhov sib npaug ntawm noo noo cov ntsiab lus ntawm kev siv ib puag ncig. , kom cov dej noo hauv cov ntoo thiab cov huab cua sab nraud ib puag ncig yog qhov sib npaug, thiab cov ntoo sab hauv cov dej noo yog qhov tseem ceeb nyob rau hauv lub xeev ntawm tsis nqus los yog poob.
