The population age composition of Jining shows that Jining has become an aging society. 2.

Different types of farmers have significant differences in the family division of labor, age composition, and gender.

不同类型农户在家庭劳动分工、年龄构成及性别等方面存在明显的差异。

Age composition indicates that the immature group ( 0& 4 years) constitutes a large proportion.

从江豚的年龄组成看出，幼龄组（0&4龄）的比例较大，结构基本正常。

The age composition rages from 2+ to 7+;

年龄组成为2+～7+龄；

The structure character of inbound tourists includes gender, age composition, and purpose.

其中入境游客结构特征的考察包括性别构成、年龄构成、以及原由目的构成。

Age composition of the catch was analysed.

分析了渔获物的年龄组成。

Based on the analysis of distribution of pressure applied by hydraulic support base on seam floor, a method to test the allowable specific pressure of high water content material was suggested.

在分析回采工作面支架底座作用在底板岩层上压力分布特征的基础上，选择正方体试件用钢质小圆柱加压实验的方法测定高水速凝材料容许比压。

Physics and mechanics performance of paste-like backfill material in coal mine such as strength, allowable specific pressure and compressive rate was researched by experiment.

通过实验研究了煤矿似膏体充填体的强度、容许比压、压缩率等物理力学性能。

Allowable rolling pressure for small-flexibility slab edging

热轧立轧小柔度板坯允许轧制压力的研究和应用

With the known formation pressure and saturation pressure, this formula helps to calculate the lowest allowable flowing pressure of a well or an oil field.

有了这个公式，只要知道地层压力和饱和压力，便可计算出油井或油田的最低允许流动压力。

The flange maximum allowable working pressure should not be smaller than the computed pressure of this flange in operation.

法兰最大允许工作压力应不小于该法兰在使用条件下的计算压力。

The tables for hydraulic calculation and maximum allowable working pressure of red copper pipes have been established by the authors.

为在建筑给水系统中合理应用紫铜管，并方便设计计算，建立了常用紫铜管水力计算表和最大工作压力表；

The obtained lowest allowable flowing pressure value can be used as an important basis for allocation and design of an oil field.

得到的最低允许流动压力数值可作为油田配产和油田规划设计的重要依据。

Maximum allowable working pressure

最大容许工作压力；最大允许工作压力；最高允许工作压力

Determination of the Allowable Minimum Pressure of Casing Damage

防止套管损坏的允许压力界限的确定

Also, the formulas of allowable internal pressure for various pressure vessels are proposed.

并在此基础上推导了不同压力容器的许可压力公式。

Research on allowable grouting pressure of concrete crack by means of fracture mechanics

用断裂力学研究混凝土裂缝的允许灌浆压力

Experimental Research on Allowable Specific Pressure of High Water Content Material

高水速凝材料容许比压的实验研究

He paper discusses the analytical method to determine the offset e and the radius γ 0min of the minimum prime circle of disc cams with translating roller followers nuder the condition that motion laws and the allowable pressure angle are given.

本文讨论了在运动规律和许用压力角给定情况下确定滚子直动推杆盘形凸轮机构的偏距e和最小基圆半径r0min的解析方法。

The tapered diameter design was adopted, in which the whole multiple outlet pipeline consists of pipe segments with different diameters in such a way that the pipeline cost can be reduced on condition that the allowable pressure head difference is satisfied.

在满足多孔管允许压力差的条件下，采用变径设计，即整条多孔管由若干种标准管径的管道组成，可降低多孔管投资。

According to allowable pressure angles, the determinations of an oscillating follower conjugate cam's allowable axle center region and its border curves are analyzed. A method to compute its equivalent minimum base circle radius is given out.

对摆动从动件共轭凸轮按许用压力角确定凸轮轴心许用区进行了分析，给出了摆动从动件共轭凸轮等值最小基圆半径的计算方法。