求翻译：导轨和电枢之间的滑动电接触问题是电磁轨道发射技术中的最关键问题之一，本文以此为方向，通过设计发射试验对实际发射过程中接触面上发生的一系列现象展开了分析和研究。是什么意思？

Sliding electrical contact between the rails and armature, electromagnetic rail launch technology in one of the most critical issues, this paper this direction, through the design of emission test launched a series of phenomena occurred on the contact surface of the actual emission process analysis

Guides and armature of a sliding electrical contacts between the electromagnetic orbit problem in the technology of one of the most critical issues for this article, by design, and direction of the actual launch test fired in the process of contacting surface has launched a series of phenomena which

Between the guide rail and the armature glide electrical pick-off question is one of in electromagnetism orbital launch technology most key questions, this article take this as a direction, a series of phenomena which in the contact face occurred to the actual launch process in has launched the anal

Sliding electrical contact problem between rail and armature are electromagnetic rail emission technology in one of the most critical issues, this article on this direction, design by launch tests on actual contacts in the process of launching a series of analysis and research.

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