Select the Elliptical Marquee Tool (m) and make a selection over the divider line.
选择椭圆选框工具(M)然后在分割线上面画出一个椭圆。
Move the square box and push aside the divider. Wow!
移开方盒并挪离隔板。哇!
The ratio error of the divider calibration with this method is at 10-7 order magnitude.
结果表明:用该方法校准的分压箱,比率误差为10-7量级。
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