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关注：1
2013-05-23 12:21
求翻译：石油催化裂化过程的防火防爆技术研究是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
石油催化裂化过程的防火防爆技术研究
问题补充： |
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2013-05-23 12:21:38
Oil catalytic cracking process of fire and explosion prevention technology research
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2013-05-23 12:23:18
Catalytic cracking of petroleum during fire-proof technology research
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2013-05-23 12:24:58
Petroleum catalytic cracking process fire protection explosion-proof engineering research
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2013-05-23 12:26:38
Research on fire prevention and explosion protection technology of petroleum catalytic cracking process
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2013-05-23 12:28:18
oil catalytic cracking process of fire-proof technology research;
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