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Dab tsi yog Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob

Cov yeeb nkab cua sov hauv qab yog ua los ntawm cov yas.
Cov kav dej hauv pem teb yog cov kav dej siv hauv cov cua sov. Cov khoom siv feem ntau suav nrog PE-X, PE-RT, thiab PB kav dej, txhua yam yog ua los ntawm cov yas nrog ntau hom. Txawm hais tias lawv yog cov khoom siv yas, lawv muaj kev tiv thaiv oxidation zoo heev thiab siv tau ntev.
Tsis tas li ntawd, nws lub caij nyoog tsis yog qhov tseem ceeb, thiab nws tseem muaj peev xwm tiv thaiv khov thiab tawg tau zoo tom qab tau ntim dej hauv cov kav dej. Txhawm rau txhim kho kev tsim kho, kev teeb tsa yooj yim heev, thiab kev kho kuj tseem txuag tau nyiaj.
Thaum siv nws thawj zaug, nws yog ib qho tsim nyog los kho cov dej kub kom zoo. Cov dej kub ib txwm nyob nruab nrab ntawm 25 thiab 30 degrees. Yog tias qhov kub thiab txias siab dhau lawm, nws tsis tuaj yeem lav qhov kev siv zoo ntawm cov kav dej hauv pem teb.
Nws yog ib qho yooj yim kom muaj kev deformation thiab tawg, thiab cov dej sib txuas yuav tsum tau nce ntxiv, tab sis nws tsuas yog nce li 5 txog 10 degrees txhua zaus. Ntxiv mus, nws yuav tsum tau tos rau ib lub lim tiam ntawm kev ua haujlwm ua ntej nws tuaj yeem sawv. Feem ntau, thaum dej kub nce mus txog 60 thiab 65 degrees, nws tuaj yeem siv tau ib txwm.
Tshawb xyuas cov dej ntws tawm. Feem ntau, tom qab kev teeb tsa hauv pem teb cua sov ua tiav, nws yuav raug lees paub los xyuas kom meej tias nws tsim nyog ua ntej nws tuaj yeem siv tau. Txawm li cas los xij, thaum lub sijhawm kho kom zoo nkauj tom qab, nws yooj yim rau kev puas tsuaj los ntawm tib neeg, uas cuam tshuam rau nws txoj haujlwm ib txwm muaj. Yog li ntawd, ua ntej siv thawj zaug, tag nrho cov khoom siv hauv cov kav dej yuav tsum tau kuaj xyuas kom ntseeg tau tias tsis muaj dej los yog poob.
Teeb qhov kub kom zoo, thiab yog tias tsis muaj ib tus neeg nyob hauv tsev, tsis tas yuav tsum tua cov cua sov hauv pem teb. Txwv tsis pub, nws yuav siv sij hawm ntev rau preheat ua ntej ncav cuag qhov kub thiab txias thaum nws rov qhib dua, uas yuav ua rau lub zog pov tseg. Tsis tas li ntawd, nyob rau lub caij ntuj no, qhov kub thiab txias yog qis heev, thiab yog tias qhov kub hauv lub raj xa dej qis dhau lawm, nws tuaj yeem ua rau Frost tawg. Yog li ntawd, nws yog ib qho tsim nyog los xyuas kom meej tias qhov kub hauv tsev nyob nruab nrab ntawm 13 thiab 15 degrees Celsius, uas tuaj yeem ua kom rov qab kub sai.

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