11. | Water may be resolved into oxygen and hydrogen . |
| 水可以分解成氧和氢。
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12. | Hydrogen combines with oxygen to from water. |
| 氢和氧化合生成水。
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13. | Water is a compound of hydrogen and oxygen. |
| 水是氢氧化合物。
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14. | set off a hydrogen bomb. |
| 爆炸一颗氢弹。
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15. | The union of hydrogen and oxygen forms water. |
| 氢和氧结合生成水。
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16. | Oxygen unites with hydrogen to form water. |
| 氧和氢结合生成水。
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17. | Hydrogen and oxygen combine to form water. |
| 氧和氢化合构成水。
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18. | Water contains hydrogen and oxygen. |
| 水含有氢和氧。
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19. | It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951; |
| 这个频率是空间氢原子释放的自然频率,是在1951年被人类发现的。
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20. | The permeation constant of gases through metals is negligible except for hydrogen through palladium or iron. |
| 除了氢气能穿过钯和铁之外,气体穿过金属的透气常数是可以略而不计的。
|