不光是造桥，中国的造船技术也是更新换代！据说也是积木原理！

来源: 铁肩08 于 2016-05-18 12:42:41 [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.