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。
TVB-N of mutton was analysed by KDY-9820 type automatic azotometer, through compared with kjeldahl and studied the precision, accuracy and inaccuracy of KDY-9820 type automatic azotometer.
应用KDY-9820凯氏定氮仪测定羊肉中挥发性盐基氮，通过与半微量定氮法对比及精密度实验，结果表明KDY-9820全自动定氮仪能简便、快速、准确地测定肉中的挥发性盐基氮。
The authors employed the forecasting models of N and P constructed to test the water body of Qiandao Lake, it is found that these models have a good predictive precision.
建立了千岛湖氮、磷预测模型，通过对千岛湖水体总氮和总磷预测模型的预测结果进行检验，结果表明所构建模型应用于近期千岛湖总氮和总磷的模拟有较好的预测精度。
The velocity error is minor, tends to stable and has small influence on the velocity precision when the S/N ratio is greater than limit value;
当信噪比高于界限值时，速度误差较小且趋于稳定，对速度精度影响较小；
Because the condensation process is not related to the condensation order, 2 N-type high precision time integration algorithm is introduced to the computational process.
由于消元过程与消元次序无关，故可在此过程中引入2n类高精度时程积分方法。
Precision of the Kriging interpolation of alkalytic N was improved by 42.8% considering anisotropy of spatial variability.
与各向同性相比，碱解氮在各向异性条件下克里金插值精度提高了42.8%。
Precision of the Kriging interpolation of alkalytic N was improved by 42.8% considering anisotropy of spatial variability.
与各向同性相比，碱解氮在各向异性条件下克里金插值精度提高了42.8%。
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