Thanks, It is very educational.... # `7 { A+ t7 k6 k+ qhere is a link you can read the drawings 2 I2 p5 J7 Q& b) M+ P" G7 U. v4 Q http://www.dfg.cn/gb/zjjy/7/zjjy-7-1.htm! D( R8 K4 ^( A8 ?
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[ 本帖最后由 rockylily 于 2006-12-21 13:52 编辑 ]