Vim li cas cov khoom feem ntau raug kuaj rau cov dej noo thiab cua sov?
Hauv kev ntsuam xyuas kev ntseeg tau, cov av noo feem ntau yog siv rau hauv qhov kub thiab txias, thiab qhov sib xyaw ua ke ntawm qhov kub thiab txias tsis tshua muaj nyob rau hauv lub sijhawm tom qab yuav tsum tau txiav txim siab hauv kev tsom xam ntawm qhov kev ua txhaum ntawm qhov cuam tshuam los ntawm cov av noo. Nyob rau hauv cov nqe lus ntawm txhua yam khoom, qhov decomposition decomposition, mildew loj hlob thiab deformation ntawm cov ntaub ntawv noo noo intrusion yog tham.
Yog tias nws ua tib lub sijhawm nrog qhov kub thiab txias, qhov nqus dej ntawm cov ntaub ntawv insulating yuav nrawm dua, thiab txawm tias tsim cov adsorption, diffusion thiab nqus cov phenomenon thiab ua pa, kom cov nplaim ntawm cov khoom o, deformation, foaming, coarser, tab sis kuj nce. kev sib txhuam ntawm qhov txav los yog txawm daig; Nyob rau hauv hluav taws xob, vim cov av noo, nyob rau hauv lub kub hloov yog ib qho yooj yim los tsim Frost tshwm sim, uas ua rau hluav taws xob luv luv Circuit Court.