研究表明，改性后的硅酸盐矿物纳米-微米粉作为填料对光纤护套管（HDPP）和管（PVC）的性能有较大影响。
Adding modified silicate nanometric powders to HDPP and PVC cases as casing material for optical fiber tube can significantly improve its performance.
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
为了验证理论分析结果，对悬臂管在同心套管包围的水中的附加质量系数和粘滞阻尼进行了实验研究。
The experimental study of added mass factor and viscous damping factor for cantilever tube confined in water by concentric tube was conducted in order to verify the result of theoretical analysis.
公司引进具有国际领先水平的给、排水管材管件及电工套管生产、检测设备和技术。
The company has introduced international advanced level of the drainage pipe casing pipe fittings and electrical production, testing equipment and technology.
方法（1）改良注入穿刺（EV）针与经皮肝穿刺胆道置管引流（PTCD）套管针在纯水和抗凝猪血中引流速度的比较。
Methods (1)To compare the drainage speed of the improved EV needle and percutaneous transhepatic catheterizde drainage(PTCD) case needle in water and anti coagulation pigs blood.
聚四氟乙烯内衬直管，套管，弯头，三通，四通，大小头，筒体，空压机-制氧机- 活塞环、密封圈和汽配封圈。
Teflon - lined pipe, casing, elbow, the three exchanges or four, size head, cylinder, air compressor - oxygen - ring, gasket seal ring and auto parts.
试验采用与现场相同的腐蚀试件，具体分析了两种温度状态下P110套管钢在饱和盐水中的腐蚀速度和腐蚀形态。
The test adopts test piece as the same at oil field. The article analyzes the corrosion rate and the corrosion form of P110 casing steel in corrosion fluid in two temp situations.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
我们生产的发生器常用于温室、培育室和工业应用，包括热蒸汽套管，以及溶解管和阀。
Steam-Flo generators are often used in commercial greenhouses, nurseries and industrial applications including heating steam jackets, and thawing pipes and valves.
本文通过物料平衡和热平衡计算得到了有关技术数据，论述了三套管预热器的改造内容。
Relevant technical data were obtained from material equilibrium calculation and heat energy equilibrium calculation in this paper.
第一和第二套管针活门定位在套管主体端盖内，并且各自在其中间部分具有开口。
First and second trocar valves are positioned within the cannula body end housing and each having an opening in a medial portion thereof.
这些载荷通过立管传递到井口和套管，在连接和焊接处形成临界疲劳区。
These loads are transferred through the riser to the well - head and casing system, causing fatigue at critical connectors and welds.
本发明涉及一种套管式高效泡沫金属换热器，包括外管和内管，所述外管与内管之间填充有泡沫金属。
The invention relates to a sleeve-type efficient foam metal heat exchanger, which comprises an outer tube and an inner tube, wherein a foam metal is filled between the outer tube and the inner tube.
目的比较多功能复苏套管和传统气管插管的置管时间，验证多功能复功套管的起搏功能。
Objective to compare the tracheal intubation time between the multi-functional resuscitation intubation tube and the traditional tube, as well as to verify the pacemaker function.
介绍了一种双面换热的套管式直流蒸汽发生器，其元件由直管外管和螺旋内管组成。
The once-through steam generator with double-side heat transfer component was presented in this paper. And the component is composed of straight tube outside and helix tube inside.
上套管和下套管通过螺纹管连接在一起。
The upper sleeve is connected with the lower sleeve via a threaded tube.
穿线盒是电动仪表的电缆穿管敷设时在套管的接连处、电缆的接头处以及分支处和拐弯处都必须采用的必不可少的连接件。
Electri i uire through Bix is a necessary used ad apting to lay cable eltcric instument on comelting part. branch priont and inleetion point-pipe. and cables when the eables is let mto drive-pipe.
介绍二轴一径和并流三套管式氨合成塔内件流程和结构，对两种内件的应用情况进行了对比。
The flow sheet and structure of 2 axial and 1 radial type and paralleled triple casing pipe type inner parts of converter are introduced. Comparison on their application is given.
介绍二轴一径和并流三套管式氨合成塔内件流程和结构，对两种内件的应用情况进行了对比。
The flow sheet and structure of 2 axial and 1 radial type and paralleled triple casing pipe type inner parts of converter are introduced. Comparison on their application is given.
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