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由于地球在自转,因而在发射卫星时,我们可以利用地球的自转,尽量减少发射人造卫星时火箭所提供的能量。到底可以节省多少能量呢?下面就让我们一起来欣赏下面2种不同的能量计算方法。
Since the Earth is spinning, we can use the rotation of the Earth when launching satellites to minimize the energy provided by rockets when launching satellites. How much energy can be saved in the end? Let’s take a look at the following two different energy calculation methods.