钢材的力学性能对钎头使用效果均有一定影响。
The mechanical properties of steel have an influence on the service effect;
分析、例举了预应力钢材力学性能试验中常见的误差！
The paper listed the common error in mechanical property test of PC steel products.
分析、例举了预应力钢材力学性能试验中常见的误差！
The paper listed the common error in mechanical property test of PC steel products.
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