Put the material in a known test hole on the aperture, and then through a small aperture will load imposed on the fabric, for reads deflection scale pointer value.
将待测材料夹在已知孔径的测试孔上，然后通过较小孔径将一定负荷施加于织物上，于刻度指针上读取挠曲度值。
The pointer oscillates for some time before setting down to a steady deflection.
指针会振荡一段时间然后才静止到一个稳定的偏转角。
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