不能说没有，但制造厂有 phd 的负责正常生产和应用的工程师凤毛麟角。

来源: 三河匹夫于 2023-12-27 22:20:29 [博客] [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