卡方检验

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral x~2 distributions. The efficiency of test based on the GEE mothod is infulenced.

由于PA条件不成立，回归系数的GLS估计不再是渐近无偏的，从而得到的Wald和Score统计量的分布不再是中心卡方分布拉，从而对于检验的效率也产生了一定的影响。

Business: metal processing machinery manufacturing, mold | fixture | Instruments accessories processing | repair and sales of major products: flat-panel inquiry scraping, grinding plate, testing platform, crossed platform, the assembly platform , Maohan platform, surveying platforms, the basic platform, testing platform, welding platform, San Zuobiao platform, combined platform, T-slot splicing platform, parallel-foot, the bridge-foot, rectangular-foot, point-foot , Cubic feet, to me, V-Rail, the partial-place check, the new partial-place, micrometer, school-axis, flatness Qiaoban adjustable, adjustable level of regulation, crossed disk, magnetic to me, magnetic V-type planes, V-shaped pieces of steel planes, machine damping Sizing Block, adjustable Sizing Block, ladder Sizing Block, Pad, chrome-plated jack, the southbound span Jack, Park-testing wand, Park-Jiaochi, table with chrome Park Jiao Chi-chu, Her taper gauge, Her taper shank test rods, 7:24 taper shank test rods, proof-reading Cypriot ring for smooth, sinusoidal regulation, the board cards, aluminum model of the arc, the arc of mold Model-foot aluminum, magnesium-alloy-foot primers, Dummy Bar, granite slab, granite-foot, granite cubic feet, granite, me, V-shaped granite blocks, wrenches Plum, knock - Wrenches, stay wrenches, single wrenches, bending handle wrench, straight handle wrench, convex-wrench, pry bar wrenches, sockets and heavy anti-explosive tool product line.

经营范围：金属加工机械的制造，模具|夹具|仪器仪表配件的加工|修理及销售主要产品有：刮研平板，研磨平板，检验平台，划线平台，装配平台，铆焊平台，测量平台，基础平台，试验平台，焊接平台，三座标平台，组合平台，T型槽拼接平台，平行平尺，桥型平尺，直角平尺，角度平尺，方尺，方箱，V型铁，偏摆检查仪，新型偏摆仪，测微仪，校轴器，平直度可调桥板，可调高低规，划线盘，磁力方箱，磁力V型架，钢件V型架，机床减震垫铁，可调垫铁，阶梯垫铁，垫块，镀铬千斤顶，涮漆千斤顶，园柱检验棒，园柱角尺，带表镀铬园柱角尺，莫氏锥度量规，莫氏锥柄检验棒，7：24锥柄检验棒，校对光滑专用塞环规，正弦规，卡板，铝合金对弧样板，结晶器对弧样板，铝合金平尺，镁铝合金平尺引，引锭杆，花岗石平板，花岗石平尺，花岗石方尺，花岗石方箱，花岗石V型块，梅花扳手，敲击扳手，呆扳手，单头扳手，弯柄扳手，直柄扳手，凸型扳手，撬棒扳手，重型套筒及防爆工具系列产品。

Methods Coverage rate of tap water and sanitary latrine was taken to stand for rural drinking water and sanitation level, 2006-2007. The possible influencing factors were divided into different ranks and Trend Chi-square test was used to determine the relationship between the coverage rate of tap water, sanitary latrine and the influencing factors.

根据2006-2007年&中国农村饮用水与环境卫生现状调查&的数据选取集中式供水覆盖率和卫生厕所普及率代表农村饮用水和环境卫生的水平，采用卡方趋势性检验，将可能的影响因素（家庭年收入、户主文化程度和家庭住房面积）划分等级，分别计算不同等级的集中式供水覆盖率和卫生厕所普及率，分析趋势性变化。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。