真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)包(bao)裝機按照(zhao)抽氣方式不同會有內抽式和外(wai)抽式兩種類型，它們都是由真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)系統、抽充氣密封(feng)系統、熱(re)壓封(feng)合系統、電器控制系統等組成。其中(zhong)內抽式包(bao)裝機是有真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)的，物品可以擺(bai)放(fang)在真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)里(li)，合上(shang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)機的真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)上(shang)蓋后(hou)，就形(xing)成密閉的空(kong)(kong)(kong)(kong)(kong)間，這樣就可以進(jin)行抽真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)工作了，但是在工作過程中(zhong)，有時會出現真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蓋合不上(shang)的情況