Influence of frictional pressure drop along horizontal wellbore on well productivity;
水平井筒摩擦压降对井产能的影响
An experimental investigation on frictional pressure drop characteristics of oil-water two- phase flow through a straight horizontal steel and plexiglass pipe within 40 mm inner diameter was conducted.
本文对水平放置的内径为40 mm的钢管和有机玻璃管内的油水两相流动摩擦压降特性进行了比较实验研究。
The characteristics of the time-averaged frictional pressure drop in single-phase flow, which was determined by the air purge method, for the HNO_3 solution and 30% TRPO-Kerosene solution through a 50mm-diameter discs and doughnuts pulsed extraction column were studied firstly.
在柱径为50mm的折流板脉冲萃取柱中,首先利用吹气法研究了硝酸水溶液和30%TRPO煤油水溶液体系的单相流时均摩擦压降Δpf特性。
To investigate the pressure drop due to the friction between gas-solid suspension and CFB riser wall and its effect on the measurement of average solids holdups by pressure transducers,models for predicting the pressure drop and the solids holdup were developed.
为确定气固提升管充分发展段的摩擦压降及其对颗粒浓度测试的影响,提出了充分发展段内气固两相流与管壁间摩擦压力降的计算模型,由此获得充分发展段内真实颗粒浓度的计算公式;同时在两套提升管实验装置上对压力梯度分布和局部颗粒浓度进行了系统测试和对比分析。
The frictional pressure drop of oil-water two-phase flow in a horizontal steel pipe and in a Plexiglas pipe is compared and investigated.
对水平钢管和有机玻璃管内油水两相流动摩擦压降的变化进行了研究 ,当含水率为18%～ 10 0 %、折算液速为 0 。
Experimental investigation on film boiling dispersed two phase friction pressure drop in narrow annular gap with deionized water was performed in three types of narrow annular gap.
在 3种不同间隙的同心竖直环形狭缝膜态沸腾试验段中 ,研究了以去离子水为工质的两相弥散流摩擦压降 ,比较了环形狭缝和圆形通道中两相流动摩擦压降的不同 ,还研究了环形间隙对摩擦压降的影响。
This paper studies the properties of GF/PET Friction-spun Core-yarn with different spinning parameters, and the results show: there was a critical friction ratio where the twist, breaking tenacity and slipping resistance of the yarn was best respectively; and the friction ratio would affect the regularity very little wh.
实验对不同参数玻璃纤维/涤纶包芯纱的性能进行了研究,结果表明:各存在一个临界摩擦比值,相对应摩擦纺包芯纱的捻度最大、断裂强度最大和抗剥离性最好;但当摩擦比提高到4以上时,条干均匀性变化趋缓。
The frictional pressure drop can be calculated by Chisholm equation, and the constant C in the equation depended on the quality.
可以用奇母霍斯关系式来计算窄环隙内的两相摩擦压降,式中的常数可由含气率计算
Study on Friction Pressure Drop Characteristics of Oil-Gas-Water Three-Phase Flow in Vertical Upward Pipeline
垂直上升管内油气水三相流动摩擦阻力压降特性的研究
head of fluid frictinal loss
流体摩擦阻力损失压头
To press, rub, or hit with the knuckles.
用指关节压、摩擦或叩击
Calculation method of pressure field distributed parameter of hydraulic friction pairs
液压摩擦副压力场分布参数计算方法
Study on frictional effect between extrusion container and billet in forward extrusion forming
挤压筒摩擦对正挤压成形影响的研究
Lubricating or waxing the yarn to reduce friction.
通过给纱线润滑或上蜡来降低摩擦。
Study on Tribological Properties of Green Environmental Lubricants;
可降解合成润滑油的摩擦学性能研究
Pressing the brake pedal in your car, for example, may conjure a mental image of pushing a lever that rubs against the wheels to slow you down.
例如，踩下汽车的刹车踏板，可能让你想到压住控制杆，以摩擦车轮来降低车速。
The friction coefficient of the polish surface was 74% of that of grind surface.
摩擦表面抛光处理,使摩擦因数降低为磨削处理时的74％。
"To damage (plant tissue), as by abrasion or pressure."
碰伤(植物组织),如由于摩擦或挤压。
Roller mills grind essentially by crushing and attrition.
辊磨机主要靠挤压和摩擦研碎物料。
The Study of the Hydraulic Pressure and Rotates Speed Measuring & Controlling System for Friction Welding Machine;
摩擦焊机液压、转速测控系统的研制
Study on Dry-Friction Mechnical Seal in the Condition of Low Speed and High Pressure
高压低速干摩擦机械密封性能的研究
Adaptive Dynamic Friction Compensation of Hydraulic Simulator
液压转台的自适应动态摩擦补偿研究
Friction and Wear Performance of the Hydraulic Motor Friction Pair with Liquid Dispersant-radiation Condition
液体分散剂-辐射器条件下液压马达中摩擦副摩擦磨损性能研究
The steering clutch is tighten by pressured springs and separated hydraulically with oil-type, multi-powder-metal discs.
转向离合器湿式、片、末冶金摩擦片、簧压紧、压分离。
Friction on the cost reduction team invariably leads to the disintegration of the project.
降低成本小组内部的摩擦就会导致项目的失败。