除强度条件外，环境刚度条件是发震的另一必要条件。
Besides the strength condition, the environmental stiffness condition is another one necessary for shock-generation.
对各向异性土体的强度条件研究建立一种新的表述方法。
A new method to express the strength condition of the anisotropic soil is proposed.
对于管道薄弱部件的三通，提出了不能满足强度条件时的加固方法。
For the pipe's weakness parts tee, advance the reinforce ways if the strength conditions can not content.
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