真(zhen)空(kong)(kong)包(bao)(bao)裝(zhuang)(zhuang)機(ji)(ji)按照抽(chou)(chou)氣(qi)方式不同會(hui)有(you)內抽(chou)(chou)式和外抽(chou)(chou)式兩(liang)種(zhong)類型，它們(men)都(dou)是由(you)真(zhen)空(kong)(kong)系(xi)(xi)統(tong)、抽(chou)(chou)充氣(qi)密(mi)(mi)封系(xi)(xi)統(tong)、熱壓封合系(xi)(xi)統(tong)、電器控制系(xi)(xi)統(tong)等組(zu)成。其中(zhong)內抽(chou)(chou)式包(bao)(bao)裝(zhuang)(zhuang)機(ji)(ji)是有(you)真(zhen)空(kong)(kong)室的，物品可以擺放(fang)在(zai)真(zhen)空(kong)(kong)室里，合上(shang)(shang)真(zhen)空(kong)(kong)機(ji)(ji)的真(zhen)空(kong)(kong)室上(shang)(shang)蓋后，就形成密(mi)(mi)閉的空(kong)(kong)間，這樣就可以進行抽(chou)(chou)真(zhen)空(kong)(kong)工(gong)作(zuo)了，但(dan)是在(zai)工(gong)作(zuo)過程中(zhong)，有(you)時會(hui)出(chu)現真(zhen)空(kong)(kong)蓋合不上(shang)(shang)的情況