DDA
美 ['də]英 ['də]
- n.数字微分分析机;二氯二苯乙醇
- 网络变形分析(discontinuous deformation analysis);多哈发展议程(Doha Development Agenda);歧视法(Disability Discrimination Act)

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Numerical simulation of stress distribution and displacement of rock strata of coal mines by means of DDA method
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