查询词典 sampling methods

Methods Randomized cluster sampling and a selfmade questionnaire were used in an onscene investigation.

采用随机抽样方法，运用自行设计的问卷调查表现场调查。

Exibility for point sampling. Secondly, by combining the splat-ting algorithm with Layered Depth Buffers, we implement an algorithm fordetermining the points'visibilities and re?ectance properties, which is more accuratethan pervious methods.

其改进之处包括两点：一方面，根据灭点的性质，设计出等间隔索引表的结构来组织采样图像中物体的轮廓边，有效地提高了点采样的效率；另一方面，通过将splatting绘制算法和层次深度缓存的数据结构相结合，提出了一种高精度的点云可见性判断算法，从而克服了已有方法存在可见性判断误差的缺点。

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.

摘要摘要：目的探索室内装修空气污染的主要污染物、污染程度及对人群健康的影响。

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.

目的 探讨室内装修空气污染的主要污染物、污染程度及对人群健康的影响。

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.

采用随机整群抽样的方法，在长春市选择装修6个月内的住户，监测甲醛、氨和总挥发性有机物的

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.To examine densities of formaldehyde,ammonia,total volatile organic compounds and complete questionaire.

采用随机整群抽样的方法，在长春市选择装修6个月内的住户，监测甲醛、氨和总挥发性有机物的浓度，同时进行问卷调查。

Methods Radom cluster sampling was used to choose 5 nursery schools,all 301 preschool children of low class were investigation object, and micronutrient measures such as serum zinc, iron, calcium and serum vitamin A were carried out.

随机整群抽取深圳市5家托幼机构，中、小班全体学龄前儿童3 0 1名为调查对象，进行血清锌、铁、钙、血清维生素A等微量营养素测量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。