nwd
- abbr.海军兵器指南(Naval Weapons Directory);核武器威力降级(Nuclear Weapon Degradation);核武器处理(Nuclear Weapon Disposal)
nwd-
Application of Shortwall Electric Haulage Shearer Loaders MG250 / 300 NWD
短臂电牵引MG250/300-NWD型采煤机的应用
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The average , the standard deviation and the coefficient of variation of the sample attributes of the NWD are the reflections of the basic quantitative characteristics of the nested habitats .
由近湿地类型区样点属性计算平均值、标准差和变异系数，获得了朱鹮营巢生境的数量特征；