俩互相垂直的矢量，就是相互正交，相互，正交。。

来源: 小二哥李白于 2021-09-29 11:53:35 [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.