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关注：1
2013-05-23 12:21
求翻译：利用高压天然气膨胀降压产生的冷能是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
利用高压天然气膨胀降压产生的冷能
问题补充： |
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2013-05-23 12:21:38
Expansion of high-pressure natural gas cold energy generated by step-down
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2013-05-23 12:23:18
Using high-pressure natural gas expansion buck the cold can
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2013-05-23 12:24:58
Inflates voltage dropping resistor using the high-pressured natural gas produces coldly energy
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2013-05-23 12:26:38
Using high pressure gas expansion pressure generated cold energy
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2013-05-23 12:28:18
Expansion of high-pressure natural gas cold energy generated by step-down
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