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[求助]
求大神看看这句话啥意思，看的纠结
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For the purposes of this study, we will define excursions where the mean stress is tensile to be tensile or positive excursions, and those where the mean stress is compressive to be negative or compressive excursions. 发自小木虫Android客户端 |
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2楼2016-02-15 21:19:36
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