查询词典 ram-type pump

Given the Duri oil field adjacent to the consolidation of sand there is not serious sand greatly reduced pump rod pump efficiency, and horizontal wells using the naked eye is difficult to control completion of prefabricated sieve out the sand, so the use of horizontal wells Kulin tolerance strata of sand Rodless pump artificial lift.

鉴于相邻的Duri油田有不固结砂，严重的出砂大大降低了有杆泵泵效，而水平井采用裸眼预制筛管完井难以控制出砂，因此Kulin水平井采用耐受地层出砂的无杆泵进行人工举升。

The impact of pump depletion on gain spectrum is analyzed by comparing the gain spectra in pump depleted and pump undepleted regimes.

通过比较考虑抽运光损耗与忽略抽运光损耗增益谱的差别，分析了抽运光损耗对增益谱的影响。

The valveless pump has inlet and outlet with tapered tube and does not need control of valves. The flow rectification of the valveless pump can be realized based on the nozzle/diffuser action. The differential SMA actuator controlled by alternative current makes the baffle of the valveless pump reciprocating motion.

该无阀泵具有锥形入口和出口而不需要阀门控制，单方向泵流是靠锥形入口和出口的收缩和膨胀作用实现的，差动式形状记忆合金执行器在交变电流的控制下使无阀泵的挡板往复运动。

Along with development of heat pump and its all kinds of driver device and heat pump system experiment study, heat pump technology will be applied more and more widespreadly in our country,and will play an important.

概述了中国目前的能耗现状和能源问题面临的形势，提出热泵技术是回收和利用低位热能的有效措施之一，研究和推广应用热泵技术对于节能有重要意义。

A change in single-screw pump suction valve opening degree, when the suction vacuum is small, pump parameters changed little, and when the suction vacuum is larger, the pump working conditions deteriorated dramatically.

改变单螺杆泵吸入口阀门开启度，当吸入口真空度较小时，泵特性参数变化不大，而当吸入口真空度较大时，泵的工作状况急剧恶化。

In order to meet the need of economic development for large-specification roll of steel plates, technical improvements have been carried out in the hot-rolling mill. The six sets of high pressure water pump, which cannot provide high enough speed of water supply for rolling, is replaced using three sets of high pressure centrifugal pump. The working mode of three sets of high pressure centrifugal pumps is that two pumps work and another one is spare. After the project has been carried out other problems emerge, for example, the electromotor becoming very heat and the pump being frequently attainted.

为了适应经济发展对轧制大规格的热轧板卷的需要，热轧板厂对轧线进行了技改，将6台不能满足快节奏高速轧制供水的高压柱塞泵更换为3台高压离心泵，三台高压水泵采取两用一备工作状态，投运以来，又出现电机严重发热，泵频繁损坏的问题。

In addition, on the basis of introducing systematic principle of water- loop heat pump, have distinguished and analyzed to some several concepts fuzzier and easier to obscure in using, the conclusion is that water- loop heat pump belongs to the air- source heat pump in fact.

此外，在简单介绍水环热泵系统原理的基础上，对一些在使用中比较模糊和容易混淆的几个概念进行了区别和分析，并得出水环热泵事实上应该是一种空气源热泵的结论。

This article introduces the structure, principles and performance of several low-noise gear pumps, analyses that gear pump is the noise source in the new internal combustion forklift and battery forklift, provides some methods which can reduce the gear pump noise, and establishes the matching relation between gear modulus and pressure angle of the gear pump, which is applied to the new internal combustion forklift and forklift battery.

摘 要：本文介绍几种低噪声齿轮泵的结构、原理和性能，分析了新型内燃叉车和电瓶叉车中齿轮泵是噪声源，给出了可降低齿轮泵噪声的方法，建立了该种齿轮泵的齿轮摸数和压力角匹配关系，并在某新型内燃叉车和电瓶叉车上得到应用。

Used the finite element method computation pipe network resistance thus obtains the ballast water system the line pressure distributed situation. The paper also has carried on the computation to the ballast tank hydraulic loss and has provided the theory basis to the ballast pump optimized design. The overpressure to the ballast tank has been carried on the discussion. The paper also gets the function between the rated flow and the rated pressure of the pump on ships whose BW pipe net is uniform and line is different, which provides a new method for the selection of BW pump.

文章重点讨论了船舶压载水系统的水力计算，使用有限元法计算管网阻力从而得到压载水系统的管路压力分布情况；文章还对压载舱的水力损失进行计算，对压载水泵的优化设计提供了理论依据；文章还对压载水舱过压问题进行讨论；文章对压载水系统相同而航线不同的船舶，利用最小二乘法得到其压载水泵额定流量和额定压头之间的函数关系，为压载水泵的设计和选型提供了新的方法。

In the original ballast promotes the pump house CompactLogix control system and east auxiliary constructs in the area pump house ControlLogix control system's foundation to use the ControlNet networking, through RSLogix 5000, RSVIEW32 software's establishment, the edition, realizes the ballast to promote the pump house the remote control, achieves the enhancement production efficiency, convenient equipment monitoring, maintenance goal.

摘 要：在原压舱水提升泵房CompactLogix控制系统和东辅建区泵房ControlLogix控制系统的基础上使用ControlNet网络技术，通过RSLogix 5000、RSVIEW32软件的设置、编辑，实现压舱水提升泵房的远程控制，达到提高生产效率，方便设备监控、维护的目的。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。