random sample是什么意思

网络释义

用法例句

The eyesight is examined by selecting exposure of random sample eye-chart mark E within direction keys on the handle.

方法:采用微计算机控制视力检测仪,其由单片机、手柄和液晶显示屏构成,手柄具有上下左右方向等功能键,根据手柄上的按键选取随机出现视标"E"朝向的正确与否来检测视力。

Bifonazole -Co Cream in the Treatment of Tinea Cruris and Tinea Corporis:A Randomized Double-blind Vehicle-controlled Clinical Trial;

复方联苯苄唑乳膏治疗体股癣随机双盲对照临床试验

The Analysis of the Random-structure with A Finite Element Method;

基于有限元的一种结构随机分析方法

Research on fuzzy logic control of structural vibration for offshore platforms based on random uncertainty factors;

基于结构参数随机性的海洋平台振动模糊逻辑控制研究

A Fuzzy-stochastic Model for Human Response to Vibrations;

人对振动主观反应的模糊随机评价模型

Study of nonstationary stochastic groundwater flow modelling;

非平稳随机地下水流模拟

FDR model for daily runoff process stochastic simulation;

日径流过程随机模拟的FDR模型

The Value of Operative Laparoscopy and Laparotomy in Curing Tubal Pregnancy—A Randomization Clinical Trial;

电视腹腔镜手术与剖腹手术治疗输卵管妊娠的随机对照研究

Application and implementation of randomization in hill-climbing;

随机技术在瞎子爬山法中的应用与实现

The randomization of width and thickness of a stent will hare great influence on the uniformity expansion in the instable serial structure.

从力学上提出了随机失稳结构串联扩展的均匀性问题,建立了描述该问题的数学模型,提出了均匀性指标概念和该指标的概率计算公式和方法。

Clinical efficacy and safety of huperzine A in treatment of mild to moderate Alzheimer disease, a placebo-controlled, double-blind, randomized trial;

石杉碱甲治疗阿尔茨海默病的有效性和安全性的多中心双盲随机对照试验

Efficacy and safety of gabapentin in the treatment of migraine:a double-blind randomized placebo-controlled study;

加巴喷丁治疗偏头痛的有效性和安全性——随机、双盲对照研究

Randomized, Comparative Clinical Study of Gatifloxacin in Treating Community Respiratory Tract Infections;

加替沙星在社区呼吸道感染治疗中的随机对照临床研究

This paper reviews current approaches to pesticide discovery expressed in the words “imitation, randomness, modification, robotics, and orientation”, with each area discussed separately.

当今新农药创制的方法,归结为“模拟、随机、改造、仿生、定向”十个字,对此分别予以论述。

Both the fuzziness and the randomness of the basic variable and the state variable are considered in the present method.

结合工程实际,提出了非闭合隶属函数的截断可能性分布模型,并对模糊强度和模糊应力进行截断处理,给出了结构模糊随机失效概率随截断参数的分布,并给出了结构模糊随机失效概率分布的数值计算方法。