Its function is the same as the spring-type casing scraper, but it can decrease and even avoid that the scraped pipe-column falls in oil well.
作用同弹簧式刮削器，但可减少甚至避免刮削管柱落井。
Type DG pump is single casing segmental multi-stage centrifugal pump, the main parts of it are stator, rotor, bearing and shaft seal.
本型泵是单壳体节段式多级离心泵，主要由定子、转子、轴承和轴封四大部分组成。
Some of the testing results of the dual casing is verified by calculating using this method, and the characteristics of this type of casing is further identified.
计算过程还证实了双层组合套管的一些试验结果，对该种套管的特点有了进一步的认识。
Cased hole formation resistivity (CHFR) logging tool is a new-type instrument which is developed to measure and evaluate formation remaining oil saturation in casing hole of oilfields.
套管井地层电阻率测井仪是为了满足油田在套管井中测量和评价地层剩余油饱和度而研制的新型仪器。
This article introduces the V type adjusting hydraulic cylinder mechanical lock equipment of casing and coupling production line which imported from PMC. USA.
介绍了从美国PMC公司引进的套管接箍生产线中V型座调整机构的液压缸机械锁定装置。
The utility model relates to a plastic casing type circuit breaker. An operating mechanism comprises a handle, a lever, and a connecting rod.
一种塑料外壳式断路器，其操作机构包括手柄、杠杆及连杆。
At present, casing damage has became a serious problem. This paper analyzed the casing damage type and its cause and discussed the technical methods of preventing and treating the problem.
就目前套管损坏数量大、分布广、危害大等现状，分析了套管损坏的类型和损害原因；
A type of packer that USES an inflatable bladder to expand the packer element against the casing or wellbore.
利用可膨胀胶囊使封隔器密封元件紧靠套管或井筒的一种封隔器。
A new type surface testing machine of casing was designed and manufactured, its structure and working principle were introduced.
介绍了一种自行研制的套管表面形貌检测仪的结构、工作原理。
The nozzles are of blade type while the casing is horizontal split.
喷嘴型式为叶型式，缸体为水平剖分式。
Air intercoolers and after-cooler, high efficiency cartridge type, built into the casing.
空气中间冷却器和一套后冷却器都为高效套筒形式，装在机壳中。
By evaluating the technology of new steel type and compiling reasonable process procedure, welding casing made of low temperature steel has been achieved successfully.
通过对新钢种的工艺评定，编制了合理的工艺规程，使压缩机低温钢焊接机壳获得成功。
The structure, working mechanism and laboratory tests of new type fast makeup casing heads are introduced. Field installation and applications of the casing heads are described in detail.
介绍了新型快装套管头的结构、工作原理及室内试验情况，详细叙述了该套管头的现场安装及应用情况。
It is designed specifically to replace a solid body type centralizer for casing running applications and severe well geometries when run in horizontal, long ERD, J-type, S-type and other well designs.
该扶正器最初的设计目的在于替换固体式扶正器，用于下套管作业，以及复杂井身结构，如水平井、大位移井、J -型井、S -型井和具有其他井身结构设计的井。
The connecting method is that a tooth outline cone type clamping ring is arranged between connected pipes and an outer casing.
这种连接方法是被连接的管子与外套之间装有齿形锥式卡环。
This fountain is provided with diving pump, spray nozzle, cover board, water tank, transparent casing, seep hole and water type converter;
一种喷泉，具有潜水泵、喷嘴、盖板、水槽和透明外罩、渗 水孔、水型变换器；
The casing of the clamshell-type electronic device has the advantage of easy opening.
上述翻盖型电子装置外壳具有较易开启的优点。
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 unit casing shall be air tight at low and high pressure, units to be installed open to weather shall be weather proof type.
部件的层面在低压和高压下应具有气密性。安装在室外的部件应具有耐候性。
The unit casing shall be air tight at low and high pressure, units to be installed open to weather shall be weather proof type.
部件的层面在低压和高压下应具有气密性。安装在室外的部件应具有耐候性。
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