古人在观星时使用的是赤道坐标系,使用的术语是什么 知乎 Template




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Try and sketch some of theseBoxer, Waiter waitress, Measuring cup, Sprinkles, Spool, Wrench, Cheese and Crackers, Giraffe, Grog, Skater, view more ideas


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tomski古人在观星时使用的是赤道坐标系,使用的术语是什么 知乎 coloring