现在做工业应用或化工实验的，都有安全设计并有严格的sop。

来源: reader007 于 2018-07-10 22:11:38 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent