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該(gai)泵(beng)(beng)是(shi)在(zai)循環(huan)水多用(yong)(yong)真空泵(beng)(beng)的基(ji)礎上(shang),根(gen)據(ju)實驗室面(mian)積(ji)較小這一(yi)特(te)點,參照日本(ben)臺(tai)式泵(beng)(beng),一(yi)次性成型(xing)外(wai)殼,縮小體積(ji)改進而成,具(ju)有體積(ji)小,重量輕(qing),外(wai)形(xing)美觀等(deng)特(te)點。本(ben)機采用(yong)(yong)二抽頭...