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The paper attempts to design and development a new type of hydraulic pump. It is the design of combining the advantages of sucker rod pump and rodless botttom hole pump, without pumping rod,and depends on the hydraulic system on the ground providing the impetus. The paper uses the pump Swabbing Principle to design the main parts of the pump structure and size, analyses and calculates the up down stroke of the piston and the switching process of pump valve, uses the finite element method to analyse the main force summing element and check intensity, and designs a ground hydraulic control system to match it. Considering the need of deep mining, salvage equipment is designed. The design shows that there is feasible and reliable to realize the exploitation underground using the new hydraulic pump. The design idea in this paper enlightens the rodless botttom hole pump production in the future and other similar issues.

本文尝试一种新型液力泵的设计和开发，它的设计思想是结合有杆泵和无杆泵各自的优点，取消抽油杆，依靠地面液压系统提供动力，本文从抽油泵抽汲原理出发，设计了抽油泵主要部件的结构和尺寸，对上下冲程柱塞的运动规律和泵阀启闭过程进行分析和计算，使用有限元法对主要零件进行了受力分析和强度校核，并设计与之配套使用的地面液压控制系统，考虑深井开采的需要，一并设计了打捞装置，为理论上实现了这种新型液力抽油泵井下开采的可行性和可靠性做了一些基础的工作，本文的设计思路对今后无杆泵采油等类似问题的研究做了有益的尝试。

This new radial piston pump uses many independent shakeable cylinder blocks besides mechanical mandatory return stroke.

该种新型阀配流式径向活塞泵采用了独立、可摆动式液缸体结构，并利用了机械强制回程。

The sinusoidal pulsed flow generator is composed of a constant discharge pump and a piston cylinder fluctuating sinusoidally in volume .

正弦脉冲流发生器由恒流泵和正弦容积变化活塞缸构成，电动活塞泵用凸轮传动给出恒定流量，活塞缸活塞用凸轮或曲轴连杆传动使缸容正弦变化。

This systerm is mainly basing on the MCU DS89C420, on basis of solvement and calculation of various electric signals, it can adjudge the signal of crank angle sensor . According to the feedback impulsury of server electromotor photoelectric coder, it can samples datas of top dead center and piston distance continuously.

本文所述的数据采集系统是以高速单片机DS89C420为核心部件的工作系统，能够对各种电信号进行处理、运算，实现对曲轴角度传感器的信号进行判断并依据伺服电机光电编码器的反馈脉冲进行曲轴上止点和活塞行程数据的连续采集。

The application of piston-like stereometer to mass flowmeter calibration has been limited by the fact that it is small in volume but complicated in structure and that the tested volume needs to be accurately converted into mass flow.

活塞式小体积管因为体积小，结构复杂，检测的体积需要非常准确的转换成质量流量，制约了活塞式小体积管在检定质量流量计方面的发展。

So that the low temperature ion sulphurization technique can extend the service life of machine parts such as bearings, cutting tools, cylinder liners and piston rings of engine, gears, rollers, steel rings, etc.

渗氮＋渗硫复合处理可使渗硫层的持续时间显著延长，并能在各种速度条件下非常明显地提高表面的抗擦伤性能。

In only 12 month, Tanan Shenran 150 thousand M3 per day LNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内，泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程，该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑，不仅在建设周期上创造了第一，在技术方面同样创造了多个第一：我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备，填补了国内在这一技术领域的空白，对我国名族天然气液化事业的发展产生了积极的推动作用；首次实现设备国产化达到100%；首次采用并联双温区的膨胀机制冷技术；首次将等压干燥脱水技术应用于天然气液化系统、净化系统；首次在净化系统采用了导热油炉、单炉双温区共用形式；所采用的单级双列活塞式氮气压缩机位国内最大等技术。

In only 12 month, Tanan Shenran 150 thousand M3 per dayLNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内，泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程，该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑，不仅在建设周期上创造了第一，在技术方面同样创造了多个第一：我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备，填补了国内在这一技术领域的空白，对我国名族天然气液化事业的发展产生了积极的推动作用；首次实现设备国产化达到100%；首次采用并联双温区的膨胀机制冷技术；首次将等压干燥脱水技术应用于天然气液化系统、净化系统；首次在净化系统采用了导热油炉、单炉双温区共用形式；所采用的单级双列活塞式氮气压缩机位国内最大等技术。

On the Christmas the Christian's assistant fisted Pisafter effect 大纲 tol Piston and twisted his wrist.

在圣诞节，基督徒的助手拳击了&手枪活塞&并扭了他的手腕。

The possibility of using a reaction jet had interested aircraft designers for a long time, but initially the low speeds of early aircraft and the unsuitably of a piston engine for producing the large high velocity airflow necessary for the jet presented

使用反作用喷气的可能性令飞机设计师们向往已久，但在最初存在很多障碍，这是因为早期飞机的速度很低和活塞发动机不适合于产生&喷气式&所必需的大量高速气流。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。