proportional sampling
比例抽样
比例的
词词比例的;直线地;比例的;
反比例
；均匀间proportional sampling
比例抽样
proportional representation
(选举上的)比例代表制
the punishment should be proportional to the crime.
惩罚应当与罪行比例。
Punishment ought to be proportional to the crime.
惩罚应该与所犯的罪相应
The output should be proportional to the input.
输出应当与输入比例。
The pay will be proportional to the amount of time put in.
代价要和所花费的时间比例。
a full-hearted commitment to proportional representation.
对比例代表制真心实意的信奉。
a circle's area is proportional to the square of its radius.
圆的面积与它半径的
正比。
The dwarf's long arms were not proportional to his height.
那侏儒的长臂与他的身高不比例。
The increase of wages is proportional to the rise in prices.
工资的增长与物价的上涨是比例的。
The amount of force needed is inversely proportional to the rigidity of the material.
需要的力度与材料的硬度反比。
The amount of food a child needs is roughly proportional to its size.
小孩需要的食物量与他的个头大致比例。
Methods The applicability of linear scanning for multiwire proportional chamber direct digital Xray radiography were analysed.
法以多丝正比室线扫描X线摄影系统为基础,分析线扫描直接数字化X线摄影的适用性。
As the material is deformed beyond the strain that elastic deformation persists, the stress is no longer proportional to strain, and permanent, nonrecoverable, or plastic deformation occurs.
当材料的形变超出弹性形变发生的范围，其应力将不再与应变正比，永久的、不可回复的形变发生，即为塑性形变。
Designed a set of electro-hydraulic proportional system of forming hydraulic press of heteropolarity multilevel magnetic ring, established the mathematical model of the top plunger cylinder.
3.设计了极异型多级磁环形液压机的电液比例控制系统,建立了上模缸上腔的数学模型。
The simulation experiments of various kinds of electrode system under different pressure show that the gas inceptive when the gap is fixed, discharge voltage is proportional to the pressure;
对各种电极在不同压力下进行模拟实验,实验表明:通常情况下,给定间隙,气体的起始放电电压随着压力的增大而增大;
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