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关注:1
2013-05-23 12:21
求翻译:Pile size was 16 cm and centre to centre spacing of 50cm was used, which corresponds to an area of replacement ratio of 10%.是什么意思?![]() ![]() Pile size was 16 cm and centre to centre spacing of 50cm was used, which corresponds to an area of replacement ratio of 10%.
问题补充: |
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