查询词典 pumping-back method

Super-long stroke pumping uni t torsion spring balance system

超长冲程；抽油机；扭簧平衡系统

But, after several times of pumping, the tire valve broke.

可是，打了几次，内胎的气嘴竟然坏了，整个就没办法用。。。

The new type three-ring reducer can be used as drive mechanism of pumping units.

该新型减速器可用作抽油机的传动装置。

The old types oil pumping unit has many problems including over big torque and rod load peak at point of suspension , large heterogeneity and poor dynamic performance .

为解决在用的老型号抽油机存在的扭矩和悬点载荷峰值大，不均匀程度高，动力学性能较差等问题开展了抽油机柔性拖动控制技术研究与试验。

The power of motor is positive proportion to square root of equality of square pure torque .the pure torque is combined by suspension point torque and balancing weight torque ,so the change of suspension point's motion law and balancing weight offset angle can causes pure torque variation .especially, the suspension motion law is decided by configuration curve of hinder heaven sheave .so the paper has emphatically studied and analysis the law that the configuration curve of hinder heaven sheave brings the change of pumping unit energy-saving .

电机功率与减速器曲柄轴净扭矩均方根成正比，减速器曲柄轴净扭矩是由悬点载荷产生的扭矩和平衡重产生的平衡力矩合成的；改变悬点运动规律和平衡重的滞后角可以引起净扭矩的变化，其中悬点运动规律是由后天轮曲线决定的，因此，本文依据此原理着重研究分析了后天轮曲线影响抽油及节能的变化规律。

Moreover, there are countless applications of other hi-tech environment-friendly and energy-saving measures in the rebuilding of office building. There will be extensive uses of the geothermal pumping system, radiation cooling and heating systems which are totally different from the traditional air-conditioning facilities and the super energy-saving exterior sun-shading facilities and green-roof technologies etc.

其他高科技环保节能措施在办公楼改建中的运用不胜枚举：广泛采用的地源热泵系统、与传统空调完全不同的辐射制冷供暖系统，以及超节能的外遮阳设施和绿色屋面技术等，它们在使人均等值耗能降低约35%的同时也提高人体在室内的舒适度。

In the reciprocating pump, the suction valve and exhaust valve is a very important component and is vulnerable parts of their work directly affects the limits of the pressure reciprocating pump, pumping speed, power consumption and operating reliability.

在往复泵中，吸气阀和排气阀是非常重要的部件且是易损部件，它们工作的好坏直接影响往复泵的极限压力、抽气速率、功率消耗以及运行的可靠性。

B. water-filled Pump start before the pump casing and suction pipe must be full of water that is because of the presence of air vacuum pumping the population can not be formed and maintained.

b。陈籍水泵在启动以前，泵壳和吸水管内必须先布满水，这是因为有空气存在的情况下，泵吸人口真空无法形成和保持。

More than 80 percent of artificially lifted wells in the world use sucker rod pumping system.

世界80％以上的机械采油井都采用有杆抽油系统。

Prediction of sucker rod string dynamic characteristics and computer simulation research for rod pumping system［D］.

李冬平。有杆抽油系统杆柱动特性的预测与计算机仿真［D］。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。