Number (1): Everything in this space must add up to 1. The answer is 3-1, placed horizontally.
GPS Latitude : XX deg YY' ZZ.ZZ" N
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突出一个“实”字，就要避免“虚”，就要力戒形式主义，力戒“面子工程”。，推荐阅读PDF资料获取更多信息
The Soviet Union launched a number of missions to explore Venus – this probe was from an earlier flight