第十九条不同空气洁净度等级的洁净室(区)之间的人员及物料出入，应有防止交叉污染的措施。

Article 19: Measures shall be taken to protect against cross contamination of personnel and materials entering or leaving clean rooms (areas) of different cleanliness class.

youdao

第十九条不同空气洁净度等级的洁净室(区)之间的人员及物料出入，应有防止交叉污染的措施。

Article 19: Measures shall be taken to protect against cross contamination of personnel and materials entering or leaving clean rooms (areas) of different cleanliness class.

youdao