In order to meet the research need of air flow in I. C. E., a set of PIV system has been developed.
本文针对内燃机缸内气流运动研究需要，在国内首次开发研制出一套内燃机缸内全流场PIV测速系统。
To satisfy the research need of analyzing electromagnetic interference inside and outside of the system, electromagnetic topology theory came into being.
电磁拓扑理论则是应分析系统内外电磁干扰的需要而产生的非常重要的工具。
To satisfy the research need of analyzing electromagnetic interference inside and outside of the system, electromagnetic topology theory came into being.
电磁拓扑理论则是应分析系统内外电磁干扰的需要而产生的非常重要的工具。
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