| 31. | 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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| 32. | Oxyliquits are explosives consisting of combustible materials impregnated with liquid oxygen. |
| 液氧炸药是将可燃物浸以液氧组成的。
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| 33. | eyes of liquid blue |
| 蓝莹莹的眼睛
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| 34. | the liquid song of a blackbird |
| 黑鹂清脆的叫声
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| 35. | one's liquid assets |
| 流动资产
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| 36. | an oily liquid |
| 油状液体
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| 37. | an odourless liquid |
| 无气味的液体
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| 38. | siphon off all the waste liquid |
| 把全部废液用虹吸管抽掉
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| 39. | bubbles on a boiling liquid |
| 沸腾液面上的气泡
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| 40. | a solid [ liquid , gaseous] body |
| 固［液，气］体
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