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1

The interaction of rare-earth alloys and their oxides with diffusible hydrogen in steel weld metal was investigated . The resul (?)

本文探讨了稀土金属合金及其氧化物与焊缝金属中扩散氢作用的规律。
2

In this paper we derive the formulas for the isochrones in homogeneous and gradient media , and give some numerical resul .

本文推导了均匀和梯度介质中的等时线公式并计算了二维均匀和梯度介质中等时线的几何特征。