The feature of hardening layer is usually expressed by its hardness and depth, and the micro-structure of its material is determined by the hardening process.
硬化层的特征通常由它的硬度、深度来表征。硬化层材料的微观结构又取决硬化过程。
The structure and technique feature of cyclonic-static micro bubble flotation column are described.
介绍了旋流-静态微泡浮选柱的结构与技术特点。
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