根本原因是工业基础薄弱，使得科技成果转化成产品的极少。

来源: 衡山老道于 2020-08-22 22:30:42 [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.