查询词典 t distribution

Data collected from the questionnaires were analyzed by the number of distribution, percentile, mean, standard deviation, t test, factor and multiple regression to prove the hypotheses.

所得资料以SPSS套装软体进行分析，使用的统计方法包括：次数分配、百分比、平均数、标准差、t考验、单因子变异数分析、二因子变异数分析。

The Gel Permeation Chromatography results indicated that the molecular distribution of end capped PAA was smaller than that of the no end-capped one. The Differential Scanning Calorimetry results showed PA end- capped polyimide films exhibited slower rising range of the T compared to no end cappers films'.

结果表明，封端可有效阻止分子链的无序增长，使聚酰胺酸分子量分布变窄；且可明显减少分子链在高温下的反应，表现为热处理前后封端薄膜T变化明显小于未封端的薄膜。

Through comparison of model experiment and theoretical analysis, the effect of middle diaphragm on the lateral load distribution of T-beam bridge were obtained.

通过模型实验研究与理论分析对比，得到了中横隔板对T形梁桥荷载横向分布效应的影响。

In fact, multi-box girder bridge is different from T-beam multi-girder bridge. First, transverse distribution of load is influenced quite with the closed box beam; Secondly, as a simply-supported—continuous system, its 3-d structure behavior is remarkable, especially for a continuous skew bridge.

事实上，多箱式桥梁与T梁桥有很大的不同，其一是作为主要承重构件的梁为闭口箱梁，对荷载的横向分布有较大的影响，其二是采用先简支后连续的体系及桥面板的现浇湿接缝连接，其空间受力特征非常显著，对于具有斜交角度的桥梁更是如此。

Using Flow cytometer,TriTest reagent and Trucount tube(TriTEST/TruCOUNT)to assess absolute counts of CD 3,CD 4 and CD 8T lymphocyte subsets and CD 4/CD 8 ratio and observe T lymphocyte subsets distribution in sex,age,ethnics in the 110 healthy adults(Age∶16-56)in Guangxi.

用流式细胞仪(FACSCalibur，FCS)、三色免疫荧光试剂和绝对计数管(TnTEST/Tru COUNT)，检测 110名广西健康成年人(16～ 5 6岁)静脉全血CD3 、CD4、CD8T淋巴细胞绝对数值和CD4/CD8比值，并观察T淋巴细胞亚群分类计数在性别、年龄和民族上的差别。

Important values of plant species in each layer were measured, and richness, evenness and diversity indices of species in each layer were calculated by means of many methods. The contiguous grid quadrats were applied to sampling for field data. The methods such as S^2√x ratio ratio t-test and five aggregate indices CI, M(superscript *, PAI, CA, K were used to analyze the spatial distribution pattern of H.

测定了各层次植物物种的重要值，采用多种方法计算各层次物种的丰富度指数、均匀度指数和多样性指数，采用相邻格子样方法取样，应用方差均值比的t检验和5种典型聚集度指标方法，研究了不同生境中花棒种群的空间分布格局。

After that, we used these mixed distributions to re-estimate the split population duration model; also used the AIC Value, Likelihood Ratio Test, and t-test to compare the quality of different models, and it showed that the mixed split population duration model is better than the single distribution model.

我们以混合机率分配重新估计区分母体持续时间模型，并且以AIC值、概似比检定、t-检定比较各种不同的区分母体持续时间模型的优劣，结果显示混合机率的区分母体持续时间模型优於单一分配的模型。

Objective To investigate the changes of serum SOD contents and T - cell subsets distribution type after leukocyte - deduced red blood cell transfusion in patients with lung cancer.

目的：探讨了肺癌患者在输红细胞治疗前后血清SOD和T淋巴细胞亚群分布状况的改变。

Methods Serum SOD levels was measured with RIA and T-cell subsets distribution type was detected with monoclonal antibody technic both before and after leukocyte-deduced red blood cell transfusion in 32 patients with lung cancer and 35 normal controls.

分别应用放射免疫分析和单克隆抗体法对32例肺癌患者进行了血清SOD和T淋巴细胞亚群的检测，并与35名正常人作比较。

Obtaining the mineralized fissure spatial distribution through analyzing the uncertain characteristics in the prediction reduces the uncertain degree of information in prediction effectively. It can also discover the corresponding relationship between the R-T curves of different types and the distance of the sample spots to ore body in low temperature.

通过多种找矿信息非确定特性分析得出矿化裂隙空间分布的研究是降低找矿信息非确定程度的有效途径，并发现低温环境下裂隙电学的R-T曲线与矿体空间距离的对应关系。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。