A budget proposal by President Obama cancels the American space agencys plans for manned spaceflights to a lunar station.
VOA: special.2010.03.02
If I short the one-period bond it cancels out, so I've made no net purchase in 1925.
卖空一单位一年期债券则刚好抵消,所以我在1925年的净买入为零
So, when you divide by m, m cancels and everything falls at the same rate on the surface of the Earth.
因此,当等号两边除以 m 时,m 被消去了,在地球表面的所有物体,都以相同的加速度下落
So I took this to the other side and I divided through by 2b and the b here cancels.
通过移项和通分成2b,就可以消去b了
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