油管

Fruit ovoid or ovoid-oblong, slightly compressed laterally, commissure constricted, mericarps pentagonal in cross section, glabrous; ribs 5, acute; vittae 1 in each furrow, 2 on commissure.

侧面的果卵球形或卵球形长圆形，稍压扁，合生面缢缩，分果爿横截面五边形，无毛；棱5，锐尖；油管每棱槽1，在合生面上2。

Fruit ovoid-oblong, slightly flattened laterally, mericarps subrounded in cross section, commissure constricted, glabrous, shiny; ribs 5, filiform, prominent; vittae 1 in each furrow, 2 on commissure.

果卵球形长圆形，侧面的稍扁平，分果爿近圆形在横断面上，合生面缢缩，无毛，发亮；棱5，丝状，突出；油管每棱槽1，在合生面上2。

Flowers pedicellate, umbellules loose, not capitate.

果棱昏倒，棱槽不明显；油管多数 87 Ferula 阿魏属

Some nitrided tubings were fracture d used in an oil well for less than one month.

某批油管经过渗氮处理后下井使用，不到1个月就发生断裂事故。

This would benefit much more for in tubing and casing strength design than just using the API 5C3 standard, because it can not only avoid the material loss but also guarantee the safety and reliability of tubing and casing material; moreover, it can provide important reference for the engineers to optimize the strength design and improve the quality in the manufacture of tubings and casings.

这要比单一用API 5C3设计油管、套管强度更合理，既避免了材料的浪费又能保证材料的安全可靠性。

Based on 89C51 single-chip computer, the linear displacement of the wire rope was turned into pulses by the photoelectric sensor mounted in front of the drum, then the pulses were processed by computer and displayed in digital form. A discriminator was used for effective control of the measurement in consideration of the complexity of running tubings.

以89C51单片机为核心，通过安装于滚筒前的光电式传感器将钢丝绳移动的长度转换为长度脉冲信号输送到单片机处理后显示输出，鉴于油管下放过程的复杂性，利用有效计量鉴别器作有效计量控制。

Herein through investigation on the collected CO2 corrosion data from different CO2-contained oil and gas fields, this study analyzed the serious damage and hazards on the gas production, summarized up the general rules of CO2 corrosion and its peculiarities at different areas. According to studies on phenomena, features, mechanism, and influencing factors on CO2 corrosion, this study put forward that a few effective countermeasures should be taken for anti-corrosion technology including injecting corrosion inhibitor, adopting stainless steel or bimetallic materials for the combination casing strings or well tubings.

为此，对我国几个不同类型含CO2油气田的现场的CO2腐蚀资料进行了调查、研究，分析了CO2腐蚀给天然气生产带来的严重危害性，总结出在不同类型油气田中CO2腐蚀的一般规律和不同区域CO2腐蚀的特殊性；在对CO2腐蚀的现象、特点、类型、机理以及腐蚀的影响因素研究的基础上，提出了含CO2气井防腐工艺技术应着重解决好含CO2气井的完井、生产管柱采用不锈钢或双金属复合油管、加注缓蚀剂等几种有效的防腐蚀措施。

External hook is a tool which used inside casings or tubings to catch a variety of ropes, lifting bail, short hollow cylindes,short rope slings, etc.

用于从套管或油管打捞各种绳类，提环，空心短圆柱体，短绳套等落物的工具。

Heat recovery technologies in horizontal wells for shallow superheavy oil reservoir s are concluded in this article.

对浅层特、超稠油油藏斜直水平井注蒸汽开采工艺技术进行了总结，这些技术包括：完井、双油管注汽与采油、井下温度跟踪监测、单井吞吐及间歇汽驱等技术，分析了不同油藏、不同注蒸汽热采方式的生产效果，对下一步工作提出了建议。

CHIP DETECTOR, A magnetic plug in sumps of lubricated components for detection of internal failure of the component.

金属碎屑探测器，装在被润滑的部件滑油回油管路上的磁性塞子。用来探测部件内部有无损坏。

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。