primary sample的例句大全

variance within primary sample units

初级抽样单位内的方差

variance between primary sample units

初级抽样单位间的方差

In this method the primary current of the sample is measured by the mutual inductor and the frequency is not included in the balancing equation.

将这种方法用于以互感器测量样品初级电流的装置校准时，消除了频率的影响；

the primary key is id, and is a generated hex value for referencing the object. the following is sample db2 ddl

主键是ID，而且它是一个生成的HEX值，用于引用对象。

It is the primary requirement for electrical property experiment of rock that the core sample should be fully saturated with the formation water.

岩电实验首先要求用地层水完全饱和岩心。

the experiment results of sample reducer prove that the loading capacity of new designed product series is much higher than primary one under the same condition.

新产品系列中样机试验的结果也验证了其比原规格大小的三环减速器的承载能力有了很大提高。

the present study explores the similarities and differences of parenting styles in urban and rural china with a sample of 1699 chinese participants aged 10-14 in urban and rural primary and junior middle schools, using parenting style questionnaire.

从城市和农村选取的1699名小学四、五年级和初中一、二年级学生为被试，采用父母教养方式问卷，探讨父母教养方式的城乡差异。

A sample survey shows that 94.8 percent of new pupils in grade one of primary schools across the country have received preschool education.

据抽样调查，全国小学一年级新生中接受过学前教育的比例已达到94.8%。