重复法

The method on trans fatty acids analysis in food is very important. The effects of methylate sodium, potassium hydroxide, sulfuric acid and boron trifluoride in methanol and their different concentration and dosage on TFA analysis were studied. The chromatographic condition and the influence of time and temperature on the esterifation of TFA using boron trifluoride in methanol were optimized. A method for analyzing TFA were established by GC based on boron trifluoride in methanol and RT-2560(100m×0.25mm×0.2μm) capillary column.

研究了甲醇钠－甲醇、氢氧化钾－甲醇、浓硫酸－甲醇和三氟化硼－甲醇4种甲酯化试剂的浓度、用量及甲酯化时间和温度对反式脂肪酸检测的影响，优化了色谱条件，建立了以三氟化硼－甲醇法甲酯化，RT-2560(100m×0.25mm×0.2μm)毛细管柱为基础的反式脂肪酸气相色谱检测方法，C18：1-9 t， C18：1-11 t， C18：2-9 t， 12 t和C22：1-13 t 4种反式脂肪酸的最小检出浓度在0.774.08 mg/kg之间。4种反式脂肪酸不同添标浓度回收率为98.44%101.23%，重复测定的相对标准差在0.22%1.31%之间，有较好的准确度和重现性。

Equivalent linear method based on multiple reflection theory is used in the analysis, the shear wave velocity is calculated from empirical equation got from ground investigation, the dynamic characteristic of soi is taken from the laboratory test and is revised to simulate the liquefaction at the surface.

计算方法采用建立于重复反射理论上的等价线形化法，根据地层探查资料建立了推求地层剪切波速的经验公式，上体的动力作有下变形模量随应力水平的变化规律采用试验曲线。

We analyzed the symptoms marks、blood lipid and life quality points by the method of multivariate analysis of variance. The results indicated all the variable of the treating group and control group have the trend that changing with the observing times, and they have significant difference between the groups.

通过对各时点的症状总分、血脂和生存质量总分分别进行单变量重复测量多元方差分析，提示温阳益心法治疗组与对照组各变量均具有随观测时点变化的趋势，且组间比较有差异。3。

When the peak-to-peak drive voltage of the transducer is 120 V,average of the results obtained using the proposed method and the radiation force method are 5.09 W and 6.06 W,respectively,with a difference of 16%.

测量结果表明，在换能器两端电压峰峰值为120V时，用本方法重复10次测得声功率的平均值为5.09W，相应的用辐射力法测得声功率的平均值为6.06W，两者相差16%。

We are taking photometric measurements of all stars in the sky in several filters measurements repeated frequently to allow detection of variable stars

我们正在用光度测量法测量天空中的所有天体，使用几个重复测量的过滤器以检测变化的天体。

In the experiment, it proved that the repetitiveness、 reproducibility、 comparability of the 2.0%(NH_4)_ 2CO_3 was better than the original method through repeated experiments. The result of it was equal to the sum of water soluble sodium and the exchangeable sodium and it had better precision and accuracy. The 2.0%(NH_4)_2CO_3 could be chosen as the probational measurement of total alkality.

在本试验中，通过多批次的重复试验证明，2.0%(NH_4)_2CO_3法的重复性、再现性、可比性良好，测定结果稳定可靠，在数值上等于水溶性钠与交换性钠的总和，而且有较好的精密度和准确度，可以作为测定总碱度的试用方法。

The Reduplicate Sub-region Boundary Element Method is used to simulate the full failure process of heterogeneous brittle material since the lattice model with the same geometric size is used to discretize the specimen.

针对非均匀脆性材料格子模型的特点，采用重复子域边界元法模拟了二维非均匀脆性材料的破坏过程。

The research deals with the repetitional times and groups that athletes can endure in intermittent trainings for middle-distance race. The result acquired by the methods of experimental research, mathematical Stat.

通过实验、数理统计、比较分析等方法，对间歇训练法运用于中长跑训练中的个体运动员所承受练习的重复次数与组数进行实验研究。

Present methods for diluting were briefly introduced, and a new method, selection from point to point, was put forward and demonstrated to be a practical method. In the end,several problems about right-angle processing,deleting redundant points and lines were s imply discussed.

概述了目前已有的几种曲线点抽稀方法，提出了一种新的方法——逐点筛选法，并且用实例证明了它的实用性；最后，简要介绍了进行直角化处理、重复点线的删除以及接边时要注意的问题。

Wald SPRT, stopping rules, Kiefer-Weiss test, optimality, group sequential methods, estimation, repeated confidence intervals, stochastic curtailment, adaptive designs, and Bayesian and decision theoretic approaches.

Wald SPRT，停步规则，Kiefer-Weiss 检验，最优化，群组序贯法，估计，重复置信区间，随机截尾，自适应设计，贝叶斯理论和决策论。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。