representative sample

representative sample的基本解释

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[化] 代表性试样

与representative sample相关的网络例句 [注：此内容来源于网络，仅供参考]

Firstly,the sampling design has great impact on the accuracy of remote sensing classification.There exists great randomicity on the result of points and cluster sample verification on the different Sampling design.On the same sampling design,the stability of point sample verification is higher than that of Cluster sample verification.Secondly,the average accuracy of different sampling designs of multi-point and multi-cluster sample verification can reflect the accuracy characteristic.During the course of point sample verification,stratified sampling's error is lower than others'.During the course of cluster sample verification,systematic sampling and stratified sampling's accuracy are prior to simple random sampling's.

研究结果表明：（1）抽样方式对遥感分类精度评价结果的影响是客观存在的，不同抽样方式下的点样本和群样本检验结果都存在一定的随机性，但同一种抽样方式下，点样本检验精度评估结果的波动幅度小于群样本检验，稳定性比群样本检验要好；（2）不同抽样方式下的多次点样本和群样本检验的平均精度检验结果基本上都能够反映分类图像的精度特征，其中，点样本检验中，分层随机抽样点样本检验效果较好；群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。

Alloy of polyethylene of element of the methodological freeboard that make, titanium and sample of alloy of cobaltic chromic molybdenum, FITC of classics of cuticular grape coccus labels, the cuticular grape coccus that after sample of artificial and articulatory material is disinfected, vaccinal FITC labels, sample surface cent is slick surface and rough surface, every groups each 6 sample, brood the 24 orifice plate that contain bacterium and sample below 37 ℃ after Yo 30min, with fluorescent microscope observation, sample uses observation of scanning report lens.

方法制作超高分子聚乙烯、钛合金和钴铬钼合金试样，表皮葡萄球菌经FITC标记，人工关节材料试样消毒后接种FITC标记的表皮葡萄球菌，试样表面分为光滑表面和粗糙表面，每组各6个试样，将含有细菌和试样的24孔板在37℃下孵育30min后，用荧光显微镜观察，试样用扫描电镜观察。

The results show that the crystal form of the apophyllite sample from Huangshi of Hubei Province is mainly in tabular, and that of the sample from Punna of India is in columnar. The main elements of the both samples are Si, Ca and K, but Al and Na could be found in the sample from Huangshi of Hubei Province. The gas-liquid inclusion is mainly in apophyllite sample from Huangshi of Hubei Province, and the quartz and zeolite inclusions are mainly in the sample from Punna of India.

结果显示，湖北黄石鱼眼石样品的结晶形态以板状为主，印度浦那鱼眼石样品则以柱状为主；所有样品的主要元素均为Si，Ca和K，但湖北黄石鱼眼石样品中还含有Al和Na元素；湖北黄石鱼眼石样品以气液两相包裹体为主，印度浦那鱼眼石样品则以石英、沸石等晶体包裹体为主。

与representative sample相关的网络解释 [注：此内容来源于网络，仅供参考]

representative sample：代表性样品

卖方所提供的能代表整批交货品质的少量实物,即为"代表性样品"(REPRESENTATIVE SAMPLE). 在向国外客户寄送代表性样品时,应留存一份或数份同样的样品,以备日后交货或处理争议时核对之用,该样品称为"复样"(DUPLICATE SAMPLE). 寄发样品和留存复样,

representative sample：代表性样本

(即有时给病人吃了无用的药,但由于病人本身以为那个药有用,心态的改变导致病情好转)代表性样本(representative sample)如果一个样本在诸如男女性别. 种族等方面的分布都与总体特征非常匹配. 被试内设计(within-subject design)用每一个被试作为他自己的参照.

representative sample：代表样本

representative domain 表示域 | representative sample 代表样本 | representing function 表示函数

representative sample：典型试样

representation specification 表示法说明 | representative sample 典型试样 | reprint 复印品

National Representative Sample：全國代表性樣本

機率樣本 Probability Sample | 全國代表性樣本 National Representative Sample | 選擇性偏差 Selection Bias