采用等刚度法确定换填基础模量；
The replacement foundation modulus was ensured by the method of equivalent-stiffness.
在负刚度条件下，该法是收敛的和条件稳定的。
In the case of negative stiffness, the method is convergent and conditionally stable.
本文介绍采用有限元法计算车床床身的静刚度。
本文介绍采用有限元法计算车床床身的静刚度。
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