random drift是什么意思

用法例句

The genetic polymorphism of horn form,fleece colour,tail types,population structure in Mongolian sheep were researched by random drift theory anddiffusion equatious methods.

用随机遗传漂变理论和扩散方程方法分析了蒙古羊的形成发展过程和不同地域群体的遗传多态现象，包括群体有效大小、世代间隔、世代重叠程度、角型、毛色、尾型的遗传变异及其成因。

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