仔細分析的話，12邊和6邊的受力麵積是基本相同的，關鍵是號輸要匹配。

來源: US_CAR. 於 2012-12-14 08:01:30 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.