train positioning technologies
train positioning technologies
列车定位技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Based on the field test and analysis of the requirement of train positioning, GNSS augmentation technologies were discussed and a recommendation solution for China railway was presented.
根据现场测试数据及列车定位要求，提出了中国铁路GNSS增强系统建设方案。
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