principal pressure

Two principal hazards exist in dealing with inert gases: asphyxiation and pressure.

涉及惰性气体时存在两个主要的危险: 窒息和压力.

Analyses have been made on the principal aspects of high pressure CO2 laser. Several modern preionization techniques have been assessed. In order to develop a high-pressure CO2 laser of high energy output and large beam cross section, the X-ray preionization techniques are more potent.

对高气压CO2激光器的基本情况作了分析，评价了几种现代常用的预电离技术，认为在发展大能量、大束截面的高气压CO2激光器中x光预电离技术是较有潜力的。

The calculation principle of earth pressure using principal stress arching is proposed.

给出了用主应力拱应力分析计算土压力的基本原理.

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。

The more is principal stress deviator peak, the more possible is to emerge negative pore water pressure and to show more shear dilatation with high dry density.

干密度越大，主应力差峰值越大，表现出较大的剪胀性，孔隙水压力易出现负孔隙水压力；