The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术，不仅能提高油井产能，解除近井带污染，还可以改善防砂完井效果。
It shows that the effects of back pressure on penetration, spray cone Angle, and decline rate of centerline velocity and concentration of the spray are greater than that of fuel injection pressure.
背压对贯穿距离、喷雾锥角、喷雾轴心速度和浓度衰减率的影响均大于启喷压力。
Complications included pin loosening in 24, pin infection in 4, loss of the reduction in 4, penetration of inner plate of calvaria in 3 and pressure sores in 1 case.
并发症包括颅钉松动（24例）、钉孔感染（4例）、复位丢失（4例）、颅钉穿透颅骨内板（3例）、背心下皮肤压疮（1例）。
Based on plenty of account data, engineering estimated formulas for plastic limit internal pressure were fitted for welded pipe branch junction with incomplete penetration along intersecting line.
基于大量计算数据，拟合得出整圈未焊透三通量纲一塑性极限内压工程估算公式。
This paper introduced both mechanisms of dewatering and evaporation, and filtering. The main drives for binder migration were discussed in detail, which are capillary force and penetration pressure.
介绍了胶粘剂迁移的脱水蒸发原理和过滤原理，也详细讨论了胶粘剂迁移的主要推动力解释，即毛细渗透力和压力渗透力。
The pressure wave penetration and reflection properitics at a valve, which is located in a conduit, are discussed, And the Penetration and reflection coefficients are derived.
本文讨论了管道流体瞬变过程中压力波在管道中阀门处的穿透和反射情况，导出了压力波在阀门处的穿透和射反系数。
The jet penetration height, the separation distance, the separation boundary and the pressure coefficient within the separation region are estimated, and the 3-D correction is also adopted.
该模型可计算喷流穿透高度、分离区长度、二维分离区边界、分离区平台压力系数，并可对分离特性进行三维修正。
The bit pressure of the BHA can increase more than 50% and the penetration rate can increase 120% comparing with the adjacent Wells using conventional pendulum drilling assembly.
与邻井常规钟摆钻具组合相比，这种钻具组合的钻压提高50%以上，机械钻速则提高120%。
First, the critical discharge coefficient formula of the effervescent atomization and the penetration correlation for the pressure atomization were constructed.
理论推导了气泡雾化的临界流量系数；建立喷嘴穿透深度的经验公式；
The influence of rubber membrane penetration on volume change in large-scale triaxial tests of granular materials along stress paths with variational confining pressure need to be eliminated.
在围压变化的应力路径上对粗粒料进行大型三轴试验时，需要有效地消除橡皮膜嵌入量对试样体积变形量测的影响。
Also, it is described the influence of bit pressure and rotate speed on anti-deviation force of the BHA of anti-deviation and fast penetration with pre-bending dynamics.
文中给出了钻压和转速对预弯曲动力学防斜打快钻具组合防斜力的影响规律。
The effects of back pressure on the spray penetration, the spray Angle, etc. are also discussed.
文中还分析了背压对穿透、雾化锥角等的影响。
It was shown that the grouting pressure difference was related to the rheological parameters, consistency coefficient and gap width of grouting. The penetration radius was also affected by gap width.
计算分析了注浆压力差随稠度系数、流变参数、裂隙高度的变化情况以及裂隙高度对最大扩散半径的影响。
The author in detail introduces application of pressure grouting penetration in treatment for foundation dent that has keen caused by goaf in the paper.
详细介绍了采用压力注浆法对采空区引起的公路路基塌陷进行治理的施工情况。
Some product applications require properties of hardness and strength to resist penetration under high pressure and to provide maximum wear qualities only on the surface.
一些产品的用途决定其需要具有耐高压压溃的硬度和强度特性以及表面的耐磨性。
Drilling parameters typically include flow rate, pump pressure, standpipe pressure (SPP), pipe rotation (RPM), weight on bit (WOB), rate of penetration (ROP) and pit volume (PVT).
流量、泵压、钻压以及机械钻速等常用钻井参数还可用于监测井涌和泥浆漏失。
The meter could record automatically the whole process of penetration which was fully reflected on marked scales in accordance with change of water pressure in the field.
这种仪器在设计上，采用了由大到小的逐渐变化的水压梯度，使渗透过程更符合于田间实际情况。此外，它还能自动记录渗透的全过程。
The inlet pipe penetration into the vessel, the pressure drop across any block valves used. upstream of the venting device, and the inlet piping must be considered when determining these losses.
对与容器连通的进口管，要使用其通过阻断阀时的压力降。在确定这些压损时，必须要考虑进口管线和放空装置的上游线路。
Simulation test shows that, (1) fixing ultra-high pressure nozzle on the bit edge is helpful to penetration with PDC cutting teeth;
室内模拟试验表明（1）超高压喷嘴安装在钻头刀翼上能辅助PDC切削齿破岩；
Using plane class fat double-decked model, from potential barrier penetration angle discussion high pressure electric field to cell membrane permeability influence.
同时，利用平面类脂双层模型，从势垒贯穿角度讨论高压电场对细胞膜通透性的影响。
The effects of back pressure on the spray penetration, the spray Angle, etc...
文中还分析了背压对穿透、雾化锥角等的影响。
According to penetration data required from test, this paper has finished the test re search that welding groove types and dimensions of pressure vessel effect the SAW's penetration.
本文根据实验测得的熔深数据完成了焊接坡口形式与尺寸对埋弧焊熔深影响的试验研究。
Ultra-high pressure jet assisted drilling is an affective approach for improving penetration speed; and influential factors and mechanism of rock breakage are key technologies.
超高压水射流辅助破岩是提高机械钻速的有效途径，水射流破岩效果影响因素及机制研究是其关键之一。
Ultra-high pressure jet assisted drilling is an affective approach for improving penetration speed; and influential factors and mechanism of rock breakage are key technologies.
超高压水射流辅助破岩是提高机械钻速的有效途径，水射流破岩效果影响因素及机制研究是其关键之一。
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