| 81. | The Moon is likely to become the industrial hub of the Solar System, supplying the rocket fuels fro its ships, easily obtainable from the lunar rocks in the from of liquid oxygen. |
| 月球很可能成为太阳系的工业中心。从月球上的岩石中很容易提炼出液态氧，作为航天飞船的燃料。
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| 82. | Because the Moon has only an eightieth of the Earth's mass, it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit! |
| 因为月球的重只有地球的1/8，因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。
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| 83. | The comparable speed from the Moon is only 1.5 miles per second. |
| 而从月球出发的相应速度史是每秒1.5英里。
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| 84. | The idea of colonising Mars -- a world 160 times more distant time the Moon -- will move decisively from the second phase to the third, when a significant number of people are living permanently in space. |
| 如果有相当数量的人永久性地住在太空，征服火星的计划 -- 一个比月球远160倍的星球 -- 就可以明确地从第2阶段进入第3阶段。
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| 85. | The undulating waves of the open sea are generated by three natural causes: wind, earth movements or tremors, and the gravitational pull of the moon and the sun. |
| 公海上起伏的波浪是由3个自然因素构成的：风、地球的运动或震颤和月亮、太阳的引力。
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| 86. | In the case of the moon the rotation keeps pace exactly with the revolution. |
| 月球的自转与公转精确地同步。
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| 87. | At last, as the clouds parted, the moon burst forth in the purple opening of heaven. |
| 最好，云散开了，一轮明月倏地从紫色的天空隙缝中显现。
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| 88. | Why isn't the sun hidden from view when the moon passes between the sun and the earth? |
| 当月球从太阳和地球中间穿过时，为什么太阳未被遮住?
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| 89. | When you look at the sunlit surface of the moon , you can see that there are both light and dark patches. |
| 当你看太阳照亮的月球表面时，你可以看到光亮和黑暗的斑纹。
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| 90. | Do not cry for the moon . |
| 【谚】海底捞月办不到。
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