Introduction: concept, background and significance.
导论：概念、背景及意义。
The article gives a brief introduction of launch vehicle electrical system integration design concept.
简介了运载火箭电气系统一体化设计方案。
This paper defines the concept of fate in the introduction.
本文在引言中界定了命运的概念。
This paper defines the concept of fate in the introduction.
本文在引言中界定了命运的概念。
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