The measuring method is low precision N inefficient and strong intensity of labour.
这种测量方法测量精度低、效率差、劳动强度大。
The engineering practice proves that GM(1, N) model possesses rather good precision and forecast dependability comparing with GM(1,1) model , which hase some applied value on settlement forecast.
通过工程实例,证明GM(1,N)模型与GM(1,1)模型相比有较好的拟合精度和预测可靠度,对沉降预测有很大参考价值。
The principle which will decide the value of the truncation index N not only insures the computing precision for T-matrix method but also ensures the computing convergence.
取值的原则是既要保证T矩阵方法的计算精度也要保证计算的收敛性。
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