There are three kinds of methods to confirm the rock deformation and intensity parameters:in situ test, experiential relation method and numerical analysis method.
确定岩体变形和强度参数最常用的方法有三种：原位试验法、经验关系法及数值分析法。
A right triangle method is the most widely used in three kinds of methods.
三种方法中直角三角形法应用最广。
To calculate the transfer matrix in the fringe region of a quadrupole lens, three kinds of methods are used.
文中阐述了四极磁透镜边缘场的三种处理方法，用这三种方法计算了透镜的输运矩阵。
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