真(zhen)(zhen)空(kong)(kong)(kong)包(bao)裝(zhuang)(zhuang)機按照抽氣方(fang)式(shi)不同會(hui)有內抽式(shi)和外抽式(shi)兩(liang)種類型，它們(men)都(dou)是由(you)真(zhen)(zhen)空(kong)(kong)(kong)系統(tong)、抽充氣密封系統(tong)、熱(re)壓封合(he)系統(tong)、電(dian)器控制系統(tong)等(deng)組成。其(qi)中(zhong)內抽式(shi)包(bao)裝(zhuang)(zhuang)機是有真(zhen)(zhen)空(kong)(kong)(kong)室(shi)的(de)(de)，物品可(ke)以擺放(fang)在真(zhen)(zhen)空(kong)(kong)(kong)室(shi)里，合(he)上(shang)真(zhen)(zhen)空(kong)(kong)(kong)機的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)室(shi)上(shang)蓋(gai)后(hou)，就形成密閉(bi)的(de)(de)空(kong)(kong)(kong)間，這樣就可(ke)以進行抽真(zhen)(zhen)空(kong)(kong)(kong)工(gong)作(zuo)了(le)，但是在工(gong)作(zuo)過程中(zhong)，有時會(hui)出(chu)現(xian)真(zhen)(zhen)空(kong)(kong)(kong)蓋(gai)合(he)不上(shang)的(de)(de)情(qing)況