pressure-volume-temperature relations

By means of effort analysis of moving blade on PCC ⅳ 15.0S chopper, the relations between the corner and the sliding cutting angle 、 the vice angle and the pressure 、 the sliding cutting pressure and the resistances are studied in this paper;

通过对PCCⅣ15.0S型青饲切碎机动刀片刃口的受力分析，探讨转角a与滑切角t、推挤角x、压力T、滑切力N和阻力P的关系；

Through the relations of throttle pressure with the flux and slice deformation, the analytic design formulas of valves parameters of hydro-pneumatic spring is established.

利用开阀压力与阀片变形以及流量之间关系，建立油气弹簧阀系参数解析设计公式，利用该公式可对阀系参数进行解析设计。

Research of the Conversion Relations between Permeation Amount for Closed Water and Decompression Amount for Closed Air for the Air tightness Test of High Pressure Vessel

高压容器气密性检测的闭水渗透量与闭气降压量换算关系的研究

Based on the theoretical principle of percolation mechanism, the mathematical relations between single well production rate and formation pressure in each stratum are derived;

根据渗流力学理论原理，推导出单井产量与各层地层压力之间的数学关系；

The modulation not only has accelerated the change step or increased the competition pressure, it also changed between company's relations.

模块化不只是加速了改变的步伐或增加了竞争的压力，它还改变了公司之间的关系。

As results of the experiment, the relations between the focal length of the thermal gas lens and the input power and buffer gas pressure are presented. The evolution process of the thermal gas lens from concave to convex lens is described.

在实验部分，本文给出了热气体透镜焦距与输入功率、缓冲气体压强的关系，描绘了热气体透镜从负透镜变化到正透镜的动态过程。

Results from study prove that abnormal pressure has close relations with oil & gas distribution.

表明异常压力与 油气 分布有密切关系.

By testing of explosible pressure of aluminium and coal dusts, it is found that the lower explosible limit of dust clouds has some relations with the characteristic of chemical ignitor and duration time of pressure-time curve for different dusts.

通过对主要工业粉尘爆炸压力测定，发现粉尘爆炸下限与测试用点火具压力和燃烧持续时间有关。

This paper deals with the function relations of principal stress and principal stain of a thin-walled cylinder varying with time, and the relations between the principal stain rate and the thickness of a thin-walled cylinder, as it is subjected to internal pressure.

给出了薄壁圆筒受内压时，主应力、主应变随时间变化的函数关系，以及主应变速率与圆筒壁厚的联系。

According to coal wall front force of support and workface support stress movement transformation relations, the main roof cycle pressure can be accurately forecast.

根据工作面煤壁前方支承压力和工作面支架受力之间的运动转化关系，可准确预报工作面老顶的周期来压；