油管

Results showed that magnetic memory testing was an effective method for oil tube flaw and stress concentration degree.

结果表明，磁记忆是检测油管缺陷和应力集中程度的有效方法。

An oil tube in the fruit of certain plants, such as the carrot or parsley.

油道某些植物果实中的油管，如胡萝卜或欧芹

For the case of deep oil well, pumping rod is eccentric in oil tube during the oil recovery.

在采油过程中，由于油井较深的缘故，抽油杆在油管中是处于偏心位置的，聚驱井产出液在抽油杆做轴向运动的井筒中的流动问题就是非Newton流体在内管。。。

Oil tube length have two specifications, respectively, 630mm and 830mm.

吸油管长度有两种规格，分别为630mm 和830mm 。

Oil-Pumping unit is the necessary equipment in oil exploitation.

抽油机是石油开采的主要设备，原油生产井使用抽油机将蕴藏在地下的石油通过抽油管抽出。

Scale, paraffin, asphalt, sand, and other plugging agents in the pump, the tubing, and wellbore can cause considerable difficulties.

p185u 译文：积聚在泵，油管和井筒中的垢，石蜡，沥青，砂和其它堵塞剂可能引起相当多的麻烦。

Based on the transmission behavior of hydroelastic wave within pipe,a new thinking to utilize the hydroelastic wave + water hammer effect to control paraffin and scale and remove plug in oil pipeline system so as to realize safe transportation of oil and energy saving has been put forward in the paper.

根据液体弹性波在管道中的传输特性，结合原油管输系统，提出了刊用弹性波振荡和水击效应来防蜡防垢、排污解堵，从而实现降耗节能安全输油的新思路。

3 P ipeline must, needle valve for pilot oil

3 必须对油管、针形阀进行耐油试验3。

Processing company main products are: a variety of steel grade, multi-threaded type of coupling casing oil, petroleum oil pipe coupling, oil casing thread processing.

公司加工的主要产品为：多种钢级、多种螺纹类型的石油套管接箍、石油油管接箍、石油套管的螺纹加工。

This topic is designed to protect the oil pipe thread spinning apparatus for equipment design, In the design process, the teacher asked us to use the knowledge to complete electro-hydraulic design features include spinning machine tool design、 The top end of the design, spinning mechanical design, hydraulic control system design, the design of the transmission system, electrical system and the PLC design.

本次设计题目是石油管螺纹保护帽旋压专用设备设计，在设计过程中，老师要求我们运用机电液的知识完成，设计的内容主要包括，旋压机床总体设计、尾顶的设计、旋压机构设计、液压控制系统设计、主传动系统的设计、电气系统及PLC的设计。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。