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关注：1
2013-05-23 12:21
求翻译：试验采用的真空集热管外管直径D1=47mm，内管直径D=37mm，集热管长度L=1.5m，相邻两管中心距为B是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
试验采用的真空集热管外管直径D1=47mm，内管直径D=37mm，集热管长度L=1.5m，相邻两管中心距为B
问题补充： |
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2013-05-23 12:21:38
Test vacuum tube used in the outer tube diameter D1 = 47mm, inner tube diameter D = 37mm, collector tube length L = 1.5m, center distance between two adjacent tube B
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2013-05-23 12:23:18
Experiment with the vacuum tubes, tube diameter D 1 = 47 mm, the tube diameter D = 37 mm, the tube length L = 1.5 M, adjacent the center distance to B
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2013-05-23 12:24:58
The experiment uses vacuum collection heat pipe outer tube diameter D1=47mm, inner tube diameter D=37mm, collection heat pipe length L=1.5m, the neighboring two center distances are B
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2013-05-23 12:26:38
Using vacuum heat-collecting tube outside diameter D1=47mm inner tube diameter D=37mm, it tube length L=1.5m, Center distance between two adjacent tubes for b
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2013-05-23 12:28:18
正在翻译，请等待...
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