Based on the concept of equivalent stiffness of rock masses, the estimation of joint stiffness in distinct element model of stiff blocks is discussed.
以节理岩体等效刚度的概念为基础，讨论了离散元刚性块体模型中节理刚度的选取问题。
So analyzing the strength and stiffness of the rollers and housings to make them light and stiff is important to improve the reliability and reduce the cost of the belt conveyor.
因此对滚筒和机架的强度刚度进行分析，设计出轻便、耐用、高强度的部件对提高带式输送机的可靠性、降低成本具有十分重要的意义。
Kneading the muscles in a stiff shoulder will take away the stiffness.
揉捏肩膀上僵直的肌肉可带走僵硬。
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