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Quasi-Zenith satellite system
释义
Quasi-Zenith satellite system
Encyclopedia
工学
QZSS卫星导航定位系统
释
Quasi-Zenith satellite system;QZSS
准天顶卫星系统
一个兼具导航定位、移动通信和广播功能的卫星系统是日本自主研发的区域导航卫星系统。
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injective dimension of a module
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