Iyo vacuum evaporation yekuputira muchina ine yakasimba zvinodiwa pakushanda kweakasiyana vacuum masisitimu, yekutanga-yekumisa maitiro, kuchengetedzwa kubva mukusvibiswa kana mhosva yamuka, nezvimwewo, uye inofanirwa kutevedzera maitiro ekushanda. 1.Mechanical pombi, iyo inogona kungopomba kusvika ku15Pa ~ 20Pa kana yakakwirira ...
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