During the guarantee strength, stiffness condition, should try to reduce crusher frame weight.
在保证强度、刚度条件下，应尽量减轻破碎机机架的重量。
Besides the strength condition, the environmental stiffness condition is another one necessary for shock-generation.
除强度条件外，环境刚度条件是发震的另一必要条件。
The structural performances are evaluated from the condition number (CN) of equilibrium matrix, and CN and minimum eigenvalue of stiffness matrix.
根据平衡矩阵的条件数和刚度矩阵的条件数与最小特征值，评价基本单元的结构特征。
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