d-statistic graph 三维统计图
d statistic parameters 三维粗糙参数
3 d-statistic graph 三维统计图
3 d statistic parameters 三维粗糙参数
d 2-statistic d统计量
The trouble with this statistic is that America has lots of sources of R&D spending: federal money accounted for only $86 billion of the $288 billion that it spent on R&D in 2004.
不过这个数据有问题,因为美国研发支出的资金来源很多,比如2004年,研发总支出为$2880亿,而财政支出不过$860亿。
The general elastic modulus of the dam is back analyzed by using the statistic model, hybrid model and the 3-D FEM analysis result.
应用统计模型、混合模型以及三维有限元的计算分析成果,反演了坝体的综合弹性模量;
应用推荐