回复：如果螺丝与螺母的材料有差别,并且螺母热膨胀系数大于螺丝的膨胀系数

来源: snapon 于 2012-03-28 10:47:28 [] [旧帖] [给我悄悄话] 阅读数 : (27 bytes)

看来你没有用过喷灯吧

所有跟帖： 

• why do u think so? -newpeople- ♀ 给 newpeople 发送悄悄话 (36 bytes) () 03/28/2012 postreply 16:41:14

• some place, u just can't use it, like place close to gas tank or -newpeople- ♀ 给 newpeople 发送悄悄话 (0 bytes) () 03/28/2012 postreply 16:46:18

请您先登陆，再发跟帖！