<>现在托辊的种类也很多再说也都是标准化的东东,你的问题太广了呵呵,贴张改向滚筒图供你参考一下吧:</P><img src="attachments/dvbbs/2005-5/200553014114439982.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/2005-5/200553014114439982.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>