Selecting piezoelectric material to control vibration is a good method.
因此选用压电材料来控制振动也是一种很好的办法。
But people usually lay stress on selecting protective material rather than protective measures.
通常人们只注重防护材料的选取、制作，对防护方法不够重视。
Besides, the material type is a key reference factor in selecting electronic resources.
资料类型是选择电子资源的重要参考因素。
This essay has the objective of selecting the best packing material.
前言：目的：选择袋泡剂的最佳包装材料。
The physical property and mechanical performance must be considered when selecting the valve material.
在材料选择时必须考虑材料的物理性质和机械性能。
The physical property and mechanical performance must be considered when selecting the valve material.
在材料选择时必须考虑材料的物理性质和机械性能。
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