rigid material是什么意思 rigid material怎么读
rigid material的用法和样例
- A hand tool used to exert an impulsive force by striking, consisting of a handle with a perpendicularly attached head made of a relatively heavy, rigid material.
锤子一种通过敲击发出冲击力的工具，包括一个把手和一个与之垂直的由较沉、较重的金属制成的头
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