论述了PAS系统的结构及其基站、天线的应用特性，并对其系统中存在的缺陷提出了一些改进措施。
PAS is Personal Access System. This paper expounds the structure of PAS and antenna's applicative peculiarity, and puts forward some improvement measures.
文摘：本文针对某机载雷达天线座驱动元件液压马达的内漏进行分析，并对结构作相应改进。
Abstract: in this paper, the reasons for internal leakage of hydro - motor as driving component of antenna base for airborne radar are analyzed, and their structures are correspondingly improved.
本文针对某机载雷达天线座驱动元件液压马达的内漏进行分析，并对结构作相应改进。
In this paper, the reasons for internal leakage of hydro-motor as driving component of antenna base for airborne radar are analyzed, and their structures are correspondingly improved.
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