ringo：
[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/79/3055721248434828.gif');}"onmousewheel="returnimgzoom(this);">图中是双管正激波形图,其中CH1为驱动波型,CH2为下管VDS,CH3为上管VDS.