The effect of the rare earth on the surface morphology and the thickness of coatings has been investigated.
试验研究了稀土对涂层的微观形貌及涂层厚度的影响。
The mission of geomorphological environment research is to explore the most basic environment and features of our earth surface morphology.
地貌环境是人类一切生活最基本的场所和物质基础。
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