In this paper, we analysis the defects of least variance method, and advance a least second moment method of the futures hedging.
在本文我们分析最小方差法存在的缺陷，提出了套期保值的最小二阶矩方法。
The numerical method represents a coupling between the optimum method of advance and retreat and the finite element analysis for the design on large hoist drums of cranes that is an actual structure.
采用空间薄壁板壳元与空间梁元混合离散模型对大吨位起重机钢丝绳缠绕卷筒进行有限元分析，将有限元方法与进退法优化方法耦合形成数值算法进而对卷筒进行优化设计。
It is demonstrated that the method is advance in technology and the measured data are precise by both error analysis of measurement and field practice.
从测量误差分析及现场实践证明，该方法技术先进，测量数据精确。
Based on the analysis of the principles by which the speedy advance of hydraulic supports should be followed, the method for rapid shifting of hydraulic supports is proposed.
分析了液压支架快速移架应遵循的原则，提出了提高快速移架的方法。
Advance an automatic quantitative analysis method of failure modes and effects analysis with system transient simulation in the system design stage, take a airborne power system as a case in point.
以飞机电源系统为例提出了一种在系统设计阶段，利用系统动态性能仿真模型自动进行定量故障模式影响分析的方法。
Surface plasmon resonance (SPR) biosensors have become an advance method of measuring biospecific interaction analysis (BIA) among the modern gene manipulation technique.
利用表面等离子模共振技术（SPR）进行生物特异性相互作用分析（BIA）已成为现代基因工程技术中的一种先进的手段。
The authors introduced the methods and advance of grain size analysis technique, including direct measurement, sieving analysis, setting method and the laser grain-size analyzer;
本文主要介绍粒径测试技术方法及其新进展，包括传统的直接测量法、筛析法、沉降法和以计算机为依托的激光粒度测试仪法；
The authors introduced the methods and advance of grain size analysis technique, including direct measurement, sieving analysis, setting method and the laser grain-size analyzer;
本文主要介绍粒径测试技术方法及其新进展，包括传统的直接测量法、筛析法、沉降法和以计算机为依托的激光粒度测试仪法；
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