查询词典 sampling

Sampling and examination of aerosol is an important mean to research of atmospheric pollution.

气溶胶的采样检测是国内外研究大气污染的重要手段。

A study cased in Zhejiang Province, China, showed the fact that the three-phase sampling could produce the highest AFI area estimation precision.

用浙江省实际数据计算的结果表明：三相抽样精度明显比其他估计方法高。

Methods A total of 852 children aged from 9 to 10 years were recruited with multi-stage sampling.

方法采用多阶段随机整群抽样法抽取852名北京市城区9～10岁学生。

Air quality information-sampling is very important to manage and control air cleaner.

空气质量采集对空气清新器的管理和控制起着关键的作用。

Smoking ; air pollution ; sampling survey

吸烟；大气污染；抽样调查

Objective］ GC analytical method for butyl ether in the workplace air using sampling by charcoal tube was studied.

目的］ 研究炭管采集空气中丁醚的气相色谱分析方法。

I initially used the Airbrush tool with some fairly broad strokes, sampling the colors that were already in the area of her neck.

我最初用喷枪工具，一些相当广泛的中风，采样的颜色已经在该地区的脖子上。

Given a planar point set,the moving least squaremethod is adopted to denoise and resample it so that the resulting point set is with low noise and uniform sampling density.Then the reliable signed distance field of the preprocessed point set is constructed by using the Level Set method.Finally,an algebraic B-spline function is adopted to fit the signed distance field by solving a linear equation system.

首先给定一个表示封闭曲线、可能带有噪音且分布不均匀的平面点云，采用移动最小平方(moving least square，简称MLS)方法对点云去噪、重采样，得到一个低噪音、分布均匀的"线状"点云，再通过Level Set方法建立该"线状"点云的离散几何距离场，最后用一个代数B-样条函数光顺拟合该离散距离场，代数函数的零点集即为重建曲线。

Alfalfa (Medicago sativa L.) belongs to the typical allogamy, and the sampling strategies are closely related to its molecular genetic diversity analysis.

紫花苜蓿为异花授粉植物，其DNA多态性研究的取样策略与遗传多样性分析直接相关。

In order to adapt to the alterable optical fiber multiplexed channel, the practice of the different synchronized data-sampling methods was discussed in detail and the data-adjusting method was improved on in this thesis.

本文着重分析了采样数据同步方法的实现，并对其中的采样数据调整法进行了改进，以适应弹性光纤复用通道下数据传输的情况。

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。