<p style="margin-left:24px;line-height:150%"><span style="font-size:16px;line-height:150%;font-family:宋体">利用弹性元件受压变形的原理</span><span style="font-size:16px;line-height:150%;font-family:宋体">,弹性元件在弹性限度内受压变形,其变形大小与外力成比例,对变形大小进行测量,可求压力</span><span style="font-size:16px;line-height:150%;font-family:宋体">。</span></p><p><br/></p>