请帮忙,如果象图中的铲子不用曲面来做的话 将会有两个SHELL特征,而两个SHELL特征的壁厚相同很难做出(产生冲突,其中一个SHELL的值只能是另外一个的值的一半),该怎么解决呢??<img src="attachments/dvbbs/2003-11/2003111110204288024.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2003-11/2003111110204288024.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /> |