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In this paper, the action principle of the technology is analysed.
本文分析了铸件浸渗技术的作用原理。
Techniques of improving the memory, teaching methods, ACTION principle.
改进了记忆的技巧,教学方法,ACTION记忆原则。
The structure, action principle, function and property of the automatic water screen equipment were introduced.
文章介绍了自动水幕的结构,工作原理,作用和特点。
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