查询词典 sampling fraction

improper fraction：假分数

分子比分母小的分数叫做真分数(proper fraction)分子大于或等于分母的分数叫做假分数(improper fraction)分子比分母小的分数叫做真分数(proper fraction)分子大于或等于分母的分数叫做假分数(improper fraction)分子比分母小的分数叫做真

proper fraction：真分数

分子比分母小的分数叫做真分数(proper fraction)分子大于或等于分母的分数叫做假分数(improper fraction)分子比分母小的分数叫做真分数(proper fraction)分子大于或等于分母的分数叫做假分数(improper fraction)分子比分母小的分数叫做

proper fraction","a number below the line of a fraction：真分数

"分母","denominator","a number above the line of a fraction... | "真分数","proper fraction","a number below the line of a fraction" | "假分数","improper fraction","the numerator less than the denominat...

sampling fraction：抽样比率

sampling experiment 抽样实验 | sampling fraction 抽样比率 | sampling frame 抽样架构

sampling fraction：抽样比

sampling error 抽样误差 | sampling fraction 抽样比 | sampling inspection 抽样检查

sampling fraction：取样率

sampling facility 采样器 | sampling fraction 取样率 | sampling frequency 采样周期

variable sampling fraction：计量抽样率

计量抽样 variable sampling | 计量抽样率 variable sampling fraction | 计量抽样计画 variable sampling plan

sampling unit：抽样单元

抽样比|sampling fraction | 抽样单元|sampling unit | 抽样调查|sampling survey

Two-storied：二层林;二段林

生长率;增长百分比;成长率 increment percent;growth percent | 二层林;二段林 two-storied | 取样率 sampling intensity;sampling fraction;sampling rate

probability sampling：概率取样

概率取样(probability sampling)n 这种方法系指从一个研究母体中科学地筛选出一部分样本,将这部分样本视为整个研究母体的缩影. 概率取样可以分为三种形式:随机取样(random sampling)、分层取样(stratified sampling)和主观取样(judgement sampling).

antixerophthalmic factor：抗干眼因子

抗维生素 antivitamin | 抗干眼因子 antixerophthalmic factor | 抗干眼维生素 antixerophthalmic vitamin

January January：是一月, 一月January有新年

January, January是一月, 一月January有新年; | February, February是二月, 二月February有春节; | March , March是三月, 三月March 妇女节;