开路电压衰减法(OCVD)具有直接、简单、重复性好等特点，可准确测量器件的少数载流子寿命。

Open circuit voltage decay (OCVD) is attractive in the measurement of the minority carrier lifetime in the devices due to its straight, easy operation and good repeatability.

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本文基于反射衰减法提出一种新的直接对B超图像进行处理得到温度的监测方法，无须增加其他附加设备。

This paper proposed a new monitoring method based on reflection attenuation, which computes temperatures directly from the B-ultrasonic images and needs no more other equipments.

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作为强度折减法的关键技术问题，边坡失稳判据直接影响计算的准确性。

As a key of finite element method based on shear strength reduction, the slope failure criterion will affect the accuracy of the calculation.

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