1) pressure jump
压力突跃
2) pressure jump
压力跃变
1.
According to the theory, we proceede experiments on motion system and the experiment result shows that asymmetry valve can eliminate the asymmetry characteristics of displacement, and can diminish pressure jump in certain degree.
结合理论分析,在运动台上作试验研究,得出非对称阀控制非对称缸系统能够消除输出位移在正反向的不对称性,并在一定程度上消除活塞换向瞬间的压力跃变。
3) pop-in
[英]['pɔpin] [美]['pɑpɪn]
突跃
1.
When CTOD (crack tip opening displacement) tests for welded joint of offshore-oil-platform steel EH36 were performed at-15℃ according to test standard BS7448, phenomenon called pop-in appeared in weld and heat- affected zone of many specimens which had been pre pared by single or twin wire submerged arc welding respectively.
根据BS 74 4 8试验标准 ,在对海洋石油平台用钢EH36单、双丝埋弧焊接头的焊缝和热影响区 (HAZ)进行低温下 (- 15℃ )裂纹尖端张开位移 (CTOD)测试时 ,多个试样出现了”突跃”(F -V曲线上瞬间载荷下降、位移增加变慢 ) ,亦称”POP -IN”现象。
4) gas outburst pressure
突出压力
1.
Some relationship rules are presented including relationship between gas outburst pressure and maximum velocity of outburst jet,relationship between gas outburst pressure and flow field distribution of gas jet,and relationship between diameter of outburst hole and influence circle of gas jet.
将煤与瓦斯突出过程的瓦斯突出视为连续射流,应用伯努利方程,建立了瓦斯射流的数学模型,得到了瓦斯突出射流流速和流量表达式,在此基础上考虑突出口压力和突出口直径影响,进行了瓦斯射流的数值模拟,得到了突出压力与突出射流最大速度、突出压力与射流流场分布、突出口直径与突出影响范围间关系规律。
5) breakthrough pressure
突破压力
1.
Determination of the plugging position of water shutoff agent by breakthrough pressure method.;
用突破压力法确定堵剂在油藏中的封堵位置
2.
Exploration practices in the Jiyang Depression of the Bohai Bay Basin have indicated that,under the same dynamic condition of oil and gas pool forming,resistivity(breakthrough pressure) of entrance and exit interface is different,so fluid enters reservoir and pore respectively.
渤海湾盆地济阳坳陷的勘探实践表明,同一成藏动力条件下,油气充注成藏过程中油气等流体突破储层进/出口界面的抵抗力(突破压力)存在差异,导致选择性地进入储集体和孔隙。
3.
8% after the water of 50 PV is injected;The breakthrough pressure gradient is not lower t.
8%,突破压力梯度一般不低于3。
6) mutation Pressure
突变压力
补充资料：压力跃变
分子式：
CAS号：
性质：该方法常用测量溶液的电导来观测反应进度。高压室内安装二个等同的电导池。其一装研究的反应液，另一装具有相同电导但不产生弛豫的溶液。它们与电位计组成一个惠斯登电桥，向高压室注水增加压力使反应偏离平衡，电桥失去平衡，当升至某一高压(如104kPa)，安全膜D破裂，电导池压力迅速(50μs)降至102kPa。实验测量由高压平衡态向低压平衡态过程的弛豫时间，从而求得反应速率常数及活化体积，推测反应历程。该法的优点是信噪比高、研究的反应物浓度低等，但只能用于研究电导有变化的反应。
CAS号：
性质：该方法常用测量溶液的电导来观测反应进度。高压室内安装二个等同的电导池。其一装研究的反应液，另一装具有相同电导但不产生弛豫的溶液。它们与电位计组成一个惠斯登电桥，向高压室注水增加压力使反应偏离平衡，电桥失去平衡，当升至某一高压(如104kPa)，安全膜D破裂，电导池压力迅速(50μs)降至102kPa。实验测量由高压平衡态向低压平衡态过程的弛豫时间，从而求得反应速率常数及活化体积，推测反应历程。该法的优点是信噪比高、研究的反应物浓度低等，但只能用于研究电导有变化的反应。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条