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发表于 2012-5-10 12:50
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qiufang840706 发表于 2012-5-10 08:38 ) Y; q. x$ v R
发出来看一下
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0 v1 o" ]9 x9 |! G我想让上面那个块下落,撞上中间那个块向下运动,中间那个快和下面通过弹簧连接,但是添加3d接触没有效果,请问是怎么回事啊, `6 @* Z8 }' }3 K$ J
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