统计分析

Taking a winter wheat field (4 400 m2) of Jinghai county seed farm as experimental plot,sampling by regular grid with with 10 m ×10 m grids,48 sample points were oriented by GPS receipt machine to analyze soil water content at the depth of 0~20 and 20~40 cm in pri-winter,jointing stage and filling stage of winter wheat.The spatial distribution map of soil water of the winter wheat field using geostatistical analyst model of ARC/INFO was drew.And the spatial variability of soil water in vertical and horizontal direction was analyzed.The results could offer scientific evidence for the deciding of the exact time and quantity for winter irrigation.

以天津市静海县良种场内一块长约110m，宽约40m的冬小麦田作为试验区，采用规则格网采样，按照10 m ×10m设置格网，共设48个采样点，通过GPS手持机进行定位，分别于小麦越冬前、拔节期、灌浆期，利用便携式土壤湿度数据采集器对试验地各个采样点0~20、20~40 cm 2种深度土壤含水量进行了测定，利用ARC/INFO的地统计分析模块绘制了冬小麦3个不同生育期试验区土壤水分空间分布图，并分析了其垂直和水平方向的空间变异特征，以期为确定最佳灌溉时机和灌溉量提供科学依据。

Aiming at the frequent occurrence of drill-string fracture during gas drilling in the Puguang gas field, this paper, based on the statistical analysis of accidents on fields, makes in-depth investigation into the origins of drill-string accidents in aspects of peculiar drilling medium, different rock-breaking methods, and the vibration of drill string during the drilling process. Through macro, micro and material analysis of the fracture surface of drill string, the law of drill-string failure due to fracture is discovered and the fatigue fracture is found out to be the main type of drill-string fracture.

针对普光气田气体钻井过程中存在的钻具断裂频繁的问题，在对现场事故统计分析的基础上，从特殊的钻井介质、不同的破岩方式以及钻井过程中钻柱共振等方面定性分析了钻具断裂的原因；通过对钻具断口宏观、微观及材质分析，找到了钻具断裂失效的规律和主要形式－疲劳断裂。

This research used secondary data from the database of the Bureau of National Health Insurance, to analyze the declaration data of the population of family registration in Lien-Chian County from 1999 to 2002. We used difference in difference and Chi-square test to examine the effect of the IDS program..

本研究使用次级资料进行分析，运用全民健康保险局资料库民国93年1月设籍於马祖地区之民众，勾稽其於民国88年至91年之健保就医申报资料进行探讨，以差异中之差异法与Chi-square test进行统计分析。

Methods By using the methods of sum of money and DDDs,the antihistamines used in our hospital from 2002 to 2005 were analyzed.

采用金额排序和应用频度分析法对我院2002~2005年度抗组胺药的使用情况进行统计分析。

The spatial heterogeneity of soil water in alpine meadow, alpine shrub and desert grassland of alpine area in Eastern Qinghai-Tibet Plateau has been analyzed in different plot scales by applying Kriging and geo-statistical methods.

运用Kriging插值法和地统计分析，从多个样地尺度对青藏高原东缘高寒地区典型的高寒草甸、高寒灌丛及沙化草地进行了土壤水分的空间异质性分析。

Based on the resource dependence theory and class hegemony theory originated from western interlocking directorates practice, we give related propositions of the effect of interlocking directorates on firm performance in China.

文章在对以西方连锁董事实践为背景而构建的资源依赖理论和阶层领导理论进行分析的基础上，结合中国现实情境提出连锁董事关系网络对企业绩效影响的相关假说，并借助于社会网络和社会统计分析工具进行实证检验。

Methods The arterial blood gases and electrolytes in 180 patients with obstructive pulmonary emphysema were analyzed.

分析180例阻塞性肺气肿患者的血气酸碱结果，并结合电解质测定进行统计分析。

In this paper, the structure and properties of the market for agricultural products were analyzed; the reform and development of the circulation system of agricultural prod...

本文首先对农产品市场进行分析，回顾了我国农产品流通体制的改革和发展历程，统计分析了农产品的消费趋势。

Through statistic and analysis of interrelated data the effect rules of chemical composition,using frequenoy of mould,basic capacity of protecting slag,plate thickness,charging mode and cooling strength,e tc on star-like crack of plate were found.

通过相关数据的统计分析，找出了化学成分、结晶器使用次数、保护渣碱度、钢板厚度、装炉方式、冷却强度等对钢板显裂的影响规律；分析显裂产生的原因是，Cu原子、硅酸盐类夹杂物富集在奥氏体晶界，降低晶界强度，诱发显裂。

In order to find out the pureness of parental Carassius auratus Tungting and make an analysis of morphological genetic law between parent and progeny, the study sets out to test 27 parents and 32 offspring of Carassius auratus Tungting from Beiming lake.

为查明洞庭青鲫原种亲本种质的纯度，进行亲本、子一代之间形态学性状遗传传递规律的分析，测定了从北民湖引入的洞庭青鲫原种亲本27尾和子一代32尾，对其7项可比性状和可数性状进行统计分析，计算出各性状的均值、标准差、变异系数。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。