查询词典 sampling distribution

Quantitative textural analysis of igneous rocks has been improving the traditional qualitative and semi-quantitative petrographic methods to a new level that can be compared to geochemical analysis, which including crystal size distribution, spatial distribution pattern, crystal alignment factor and dihedral angle etc.

定量化火成岩结构分析将传统的定性或半定量化的岩相学研究，提高到了与岩石地球化学分析相比拟的定量化程度，实现了诸如晶体粒度分布、晶体空间分布、晶体定向程度分析和二面角测量等方面的定量化研究。

Result shows that there is no significant difference in distribution of any two sections' sympathetic nerve in normal goats annulus fibrosus disci intervertebralis,there is no significant difference between the sympathetic fibers distribution of convex side and concave side in annulus fibrosus disci int ...

方法先建立山羊脊柱侧凸模型，将椎间盘纤维环分为左前、左后、右前、右后四个区，然后通过NF200常规荧光组化和乙醛酸染色来研究正常山羊、侧凸山羊、正常人和青少年特发性脊柱侧凸患者椎间盘不同部位纤维环的交感神经分布特点。

Ervertebralis of scoliosis goat apical vertebral,there is no significant difference in distribution of any two sections' sympathetic fiber in normal peoples annulus fibrosus disci intervertebralis,and there is significant difference between the sympathetic fiber distribution of convex side and concave side in annulus fibrosus disci intervertebralis of AIS apical vertebral-the sympathetic nerve supply of convex side to gain advantage concave side.

结果成功构建山羊脊柱侧凸模型，研究发现正常山羊椎间盘纤维环四个区的交感神经分布无显著差异；侧凸山羊顶椎区椎间盘凸凹侧纤维环交感神经分布无显著差异；正常人椎间盘纤维环四个区的交感神经分布无显著差异；青少年特发性脊柱侧凸患者顶椎区椎间盘凸凹侧纤维环交感神经分布有显著差异，凸侧明显多于凹侧。

The 7-day low flow was regarded as statistical quantity, on the base of analysis of the discordancy measure and heterogeneity measure, the regional low flow frequency for Donjiang basin was carried out using L-moments based five frequency distributions with three parameters viz. Generalized Pareto, Generalized extreme-value, Generalized Logistic, Lognormal (LN3) and Pearson type Ⅲ. Based on the L-moments ratio diagram,{Z} and τ4-statistic criteria, LN3 distribution was identified as the most appropriate distribution for the homogeneous region with the 14 sites.

以年最小七日平均流量作为枯水径流的统计特征量，在水文站点一致性分析、水文相似区鉴别的基础上，以常见的5种三参数分布函数：Generalized Pareto分布、Generalized Extreme-Value分布、Generalized Logistic分布、LogNormal分布(LN3)和Pearson type Ⅲ为研究对象进行东江流域区域枯水频率分析。

Finally, we make researches on the statistical approach of geometric distribution and discrete life distribution class.

正如文[1]所指出的那样，"在离散寿命的情形，几何分布起着连续情形下指数分布所起的作用"。

Not only statistical distribution but also the spatial distribution of discrete cosine transform coefficients are taken into account, it is robust for transform, rotation and scale.

该算法不仅体现了DCT块中各个系数的统计分布，同时也捕捉到它们的空间分布信息，对图像的平移、旋转和尺度变换有一定的鲁棒性。

Furthermore, the compression-sensitivity of CFRC, which suffers three-direction-pressure is studied.Thirdly, present method of carbon fiber treatment is summarized. Treat the surface of carbon fiber with GLBE, the influence of surface-treatment of carbon fiber on the distribution and compression-sensitivity of CFRC was studied. According to the contrast of the compression-sensitivity before and after surface treatment, as well as the contrast of the distribution of carbon fiber in cement mortar, it is found that GLBE is able to improve the dispersiveness of carbon fiber.

再次，总结现有碳纤维的表面处理方法，选用液相气相双效法对纤维进行表面处理，并研究碳纤维的表面处理对纤维分散性和CFRC的压敏性的影响，通过对表面处理前后试块的压敏性和碳纤维在水泥浆体中的分散性的对比，发现碳纤维的液相气相双效法表面处理可以改善纤维的分散性，而且在循环荷载作用下还发现用这种表面处理的纤维制成的碳纤维混凝土对应变变化感应的稳定性和重复性得到有效提高。

Through testing flow field of new suspension girder energy dissipator, this paper reveals flow regime,velocity distribution, water surface profile, pressure distribution and other hydraulic characteristics.

对新型悬栅消能工流场的测试，揭示了悬栅流场的水流流态、流速分布、水面线形态和压力分布等水力特性。

Usually replaced by the distribution ratio D distribution coefficient.

通常用分配比D代替分配系数。

In any event, the enterprise physical distribution management goal is in order to reduce the physical distribution total cost.

无论如何，企业物流管理的目的就是为了降低物流总成本。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。