The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardened and high temperature tempered.
结果表明，碳化物分布不均匀导致调质处理后在钻杆接头中产生“带状组织”。
In other words, the temperature gradients result in the non-homogeneous properties and lead to the decrease of the initial slopes together with the ability of resisting the deformation.
温度梯度诱导了冻结中砂的非均质性，减小了模型的起始斜率，大大减低了抗变形能力；
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