screen door system的用法和樣例：
例句
- For the single door unit, leakage prior to stoppering around the door seal is not a major problem from a sterility concern, because single door units only open into sterile areas.
對于單門(mén)系統，在凍干過(guò)程中，產(chǎn)品全加塞前的泄漏，不是一個(gè)主要的問(wèn)題，因為單門(mén)系統的開(kāi)門(mén)方向是在無(wú)菌區。
