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pengyongfeng

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2Â¥2010-03-22 16:29:10
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zhangquan8385

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guxue(½ð±Ò+1):¹ÄÀø½»Á÷ 2010-04-28 07:58
pengyongfeng(½ð±Ò+5):!!!???... 2010-04-28 13:25
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Originally posted by pengyongfeng at 2010-03-20 10:48:40:
ÇëÎʸ÷λÀÏ´ó£ºpermissible static bending loadºÍcantilever breaking strengthÖÐÎÄÒâ˼ÉÏÓÐÊ²Ã´Çø±ð°¡£¿

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3Â¥2010-04-26 11:14:02
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zhangquan8385

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Originally posted by zhangquan8385 at 2010-04-26 11:14:02:

ʦÐÖ,ÎÒÏëÒ»¸öÓ¦¸Ã¾²Ì¬³ÐÔØ(·Ç³å»÷),¿¹Ñ¹?ÁíÒ»¸öÊÇÀ­Éì¶ÏÁÑÇ¿¶È(À­Éì),¿¹À­?´ËÍâÒ»¸öÊǸººÉ,Ò»¸öÊÇÇ¿¶È.Èç¹û¸øµãÉÏÏÂÎÄ,À´µãÓï¾³¾ÍºÃÁË»òÕß·­Ò뻥ÖúÒ²¿ÉÒÔ·¢Ìù.´¿ÊôÖ§³Ö,²»ÈÃËü³ÁÏÂÀ´

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