精細化工
2020-03-04 16:30:07
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凡運(yun)用(yong)化學方法改變(bian)物質組成、結構或合成新物質的技(ji)術，都屬(shu)于化學生產(chan)技(ji)術，也就是(shi)化學工(gong)藝(yi)，所得(de)產(chan)品被稱為化學品或化工(gong)產(chan)品。進行化工(gong)工(gong)藝(yi)過程(cheng)中更少不(bu)了真空(kong)(kong)泵的真空(kong)(kong)過濾、真空(kong)(kong)引水、真空(kong)(kong)送(song)料、真空(kong)(kong)蒸(zheng)發、真空(kong)(kong)濃縮、真空(kong)(kong)回潮和(he)真空(kong)(kong)脫氣等應用(yong)。