跟形状有关，圆筒形可以承受非常大的压力

来源: 三笑于 2016-09-26 01:46:22 [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