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关注：1
2013-05-23 12:21
求翻译：In the late 70’s there was a need to develop high strength steels for reactors in coal gasification projects that resisted hydrogen attack above 454°C是什么意思？ 待解决
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- 离问题结束还有
In the late 70’s there was a need to develop high strength steels for reactors in coal gasification projects that resisted hydrogen attack above 454°C
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