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.

• 对于单门系统，在冻干过程中，产品全加塞前的泄漏，不是一个主要的问题，因为单门系统的开门方向是在无菌区。