橡胶皮带是冷胀热缩的，30秒之后没声了是因为摩擦生热收紧了

来源: MoonRiverMe 于 2025-05-07 15:58:07 [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.