研究表明，应考虑样本变差系数对估计精度的影响。
The research shows that influence of sample variation coefficient on estimated accuracy should be considered.
变差系数是进行火工品可靠性设计的重要参数之一。
Using the upper limit of coefficient of variation for mechanical explosive devices, the reliability design for initiating explosive device was developed.
优化设计实例表明，截割头的负载转矩变差系数减小了13。
The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.
影响流域洪、枯水径流模数、变差系数的因素很多，如气候、岩性、土壤、地貌等许多自然条件。
There are many factors that affect the runoff modulus and the variation coefficients of flood discharge and low flow, such as climate, rock, soil, land form, and so on.
提出了在用改进雨流计数法进行载荷数据统计时结合载荷分布参数估计的变差系数法，可简化统计处理过程，提高计算速度。
Differential coefficient method together with distribution parameter estimation is put forward, so that the data processing may be implemented on a computer, thus greatly reducing calculation.
PEA-DMTDA型低硬度聚氨酯材料在扩链系数为0.9时具有最好的力学性能，耐溶剂性能则随着扩链系数的增加而变差。
PU made from PEA and DMTDA have the best mechnical property when the crosslink coefficient is 0.9. But the solvent resistance decreased with increasing crosslink coefficient.
PEA-DMTDA型低硬度聚氨酯材料在扩链系数为0.9时具有最好的力学性能，耐溶剂性能则随着扩链系数的增加而变差。
PU made from PEA and DMTDA have the best mechnical property when the crosslink coefficient is 0.9. But the solvent resistance decreased with increasing crosslink coefficient.
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