jmiller1357 发表于 2007-9-20 10:02:36

An engineering forum: www.eng-tips.com

An engineering forum: www.eng-tips.com includes Aeronautics, Composite engineering, etc. It is quite helpful to look for some discussions about engineering design and design tips.

bingo520 发表于 2007-11-21 21:54:04

打不开 。这个网站打不开
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