The free vibration analysis is conducted by using arch-frame structure model for brick arch floor, from this the local vibration and the whole vibration of the arch are studied.
对砖拱楼盖，采用拱框结构力学模型进行了自由振动分析，并探讨了局部振动和整体振动等同题。
Cured flexible rubber has good performance in electrical insulation to protect the module free from machinery vibration and out force impact.
优秀的电绝缘性能，固化后形成高强度的柔性橡胶体，保护组件免受机械震动及外力冲击。
A 5 tonne block of concrete sits in the ground, detached from the rest of the building, to make some LABS vibration-free.
5公吨的混凝土块坐落于地面，与建筑的其余部分分离，使得一些实验室免震。
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