查询词典 sampling

And the relative error characteristics of some critical parameters in asynchronous sampling are examined.

根据周期信号的传统描述，讨论了过程信号时频参量的周期域表示方法。

We analyzed the main factors that influence on the quality of reconstruction image. These factors are filter function, projection data, sampling space and noise level in filter backprojection, and the choice of relaxation parameter, the fashion of data access, the choice of basis function and the estimate of optimum iterative times in algebra iterative algorithm.

详细分析了影响滤波反投影算法图像重建质量的基本因素(滤波函数的选取，投影数，抽样间距，噪音的大小)和代数重建算法图像重建质量的几个因素(松弛引子的选择，数据访问方式，基函数的选择，最优迭代次数的估计)。

Couldn't one take a look around and do sampling with a remote-controlled lunar rover?

人能不能简单地借助于一个遥控的月球车来观光呢？

Objective To evaluate the improvement of diagnostic accuracy with background region of interest rectification for 99mTc-DTPA renography in patients with GFR≤30 ml·min-1·（1.73 m2-1, and to compare with plasma clearance of 99mTc-DTPA (GFRp, dual plasma sampling method).

目的 以99mTc-DTPA血浆清除率为标准，评价在重度肾功能不全[GFR≤30 ml·min-1·（1.73 m2-1]患者GFR的评估中，本底矫正在提高99mTc-DTPA肾动态显像检查准确性中的价值。

Article 14 The auditors shall, when selecting samples, fully consider the representability of the samples, and ensure that all the sampling unit in the pool have equal opportunities of selection.

第十四条审计人员选取样本时，应当充分考虑样本的代表性，保证总体中的所有抽样单位具有均等的被选取机会。

Purpose To solve the problem of sampling within household in resident health survey and generate a representative sample.

目的 解决居民健康调查中入户后的抽样问题，产生代表性较好的研究样本。

Comparison between official data and survey data in the Appendix shows high representativeness of sampling.

附录中与官方数据的对比分析可以看出，本次调查具有相当高的代表性。

The preserved species may lack genetic representativity because of poor sampling.

介绍了稀有濒危植物在植物园迁地保护过程中存在的一系列遗传风险。

Inaddition, it gives the linear time re-sampling method to resample the sample set.

最后给出了对样本集进行重采样的线性时间重采样算法。

A nonuniform down sampling method with borderestimation was proposed to resample the input data set according to local feature before reconstruction.

曲面重建前先通过该算法减少参与运算的采样点，表面特征丰富的区域削减的采样点数远小于特征不丰富的区域，再进行曲面重建。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。