查询词典 hydraulic

Hydraulic fracturing is a kind of process engineering that can improve the oil reservoir filtrational property, is an important measure that boosts production of oil field and augments injection of downflow well.

水力压裂是一项改造油层渗流特性的工艺技术，是油气井增产、注水井增注的一项重要措施。

The results also showed that the process of downflow combined with upflow wetland was better than other kind of combined process in cold and warm weather,the endurance of this kind of combination to high hydraulic loading was also more preferable than others.That is to say,the downflowupflow process was an ideal combined wetland process in treating wastewater.

试验结果显示，如果采用塘系统作组合单元在湿地系统中前置比较理想，而在不同的季节，不同水力负荷下的冲击试验结果表明，复合垂直流湿地系统可以常年保持稳定的、较高的磷去除能力，而且对水力变化具有更好的耐受性能。

The new technology makes the sucker rod string downwards easily by applying a downward hydraulic force at the bottom of the hollow sucker rod string, which effectively solves the problem of large drag force on the downstroke in the present technology of this kind.

介绍了一种新型空心杆采油工艺技术，这种技术采用了具有液力反馈原理的空心杆抽油泵，该泵的特点是能有效地减小空心杆的下行阻力，并能增加抽油杆的下行动力。

Hydraulic dozer Genetic neural network Power matching Control system

液压推土机；遗传神经网络；功率匹配；控制系统

This paper introduces CONCURRENT ENGINEERING deeply with new ideas and facts, combining the domestic and abroad reference documents and development of hydraulic crawler dragline excavator .

本文以并行工程为中心，同时结合我公司液压履带拉铲开发项目，对并行工程的理论和实际应用进行了深入的研究。

Mochinetool electric power dray adopted relay control , hydraulic pressure drag adopted PLC control .

机床电力拖动采用继电器控制，液压拖动采用PLC控制。

The hydraulic system is a guarantee for the various functions of a dredge .

采砂船液压系统是采砂船各项功能顺利实现的保证。

Europe, more than 40 countries and regions, rivers and lakes are widely used in the field of dredging and hydraulic fill.

欧洲等四十多个国家和地区，广泛应用于江河湖海的疏浚和吹填领域。

Main products catagories:Hydraulic Chuck,Milling Chuck,ER Collet Chuck,NC Drill Chuck,Morse Taper Chuck,Tap Chuck,Side Lock Holder,Face Mill System,and Shrinkfit Holder.

主营产品：液压刀柄、强力型刀柄、ER夹头刀柄、NC钻头夹、莫氏锥柄变换刀柄、丝锥刀柄、侧固式刀柄、平面铣刀刀柄、热缩式刀柄，以及配套用夹头。

This paper is based on the apprehension of the past theories and researches about pneumatic control double-sided gate of dry dock, and is explicated by hydraulic rationales and rising-and-falling mechanical principles. This software is developed by inner programming language in "AUTOCAD".

本文通过对已有的气控式卧式双面板干船坞卧倒门的实验成果和成形理论的解读，在理解其起浮和卧倒机理基础上，应用AUTOCAD中的内嵌二次开发语言进行开发。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。