查询词典 pumping

It points out the necessity of tubing anchor in pumping well s,especially in deep wells.

定量分析了抽油机井油管自由悬挂可能造成的危害：降低泵效；油管柱振动加速了油管的疲劳破坏；油管屈曲造成套管、油管、抽油杆柱之间的多重磨损。

That night, the besiegers dug their second forward assault line parallel. At dawn on 4 November, a Japanese infantry company reinforced by an engineering platoon attacked the water pumping station.

是夜，工兵向前挖掘了第二条与突击战线平行的壕沟。11月4 日拂晓，一个由工程排加强的日本步兵连攻击了给水泵站。

In the second part of of this thesis, we firstly derivate the operation condition of intracavity SHG of dualwavelength laser from the rate equation, and then numerically calculate the relationship between the laser operation parpmeters and the pumping powers. And then we discuss two possible ways to get balancing outputs of the harmonic waves of the two wavelengths. By comparing the two ways, we find that the method by increasing the geometrical factor of 1079. 5nm SHG has the higher efficiency than the method by adding the additional loss of 1079. 5nm basic wave. Besides, the first method is easier to realize in experiment than the second method.

本论文第二部分从速率方程出发，通过求解速率方程的稳态解得到了Nd：YAP腔内倍频双波长激光的连续运转条件，数值计算得到了随泵浦功率变化的激光运转情况；计算、分析了通过增加主波长的倍频耦合几何因子和增加主波长的腔内损耗两种方法获得均衡的双波长倍频输出的运转情况，通过二者的比较，发现增加倍频耦合几何因子的方法比增加损耗的方法效率更高，而且在实验上更易于实现。

First according to the hydraulic pressure elevator system diagram, use the machine design and hydraulic transmission knowledge calculates the diameter of the plunger, cylinder tube wall thickness as well as cylinder bottom thickness; second, through the examination confirmation to the obtained result to complete the work of cylinder design; Simultaneously has carried on the component choice and the computation; Through to the system calorific capacity computation the and the volume of cooling water while the fuel tank cools when needs to complete the hydraulic pressure elevator fuel tank design; Based on the system oil stream condition to calculated the tube internal pressure lose, the local pressure loss as well as the all of the pressure lose to carried on the system checking calculation; Finally through the consult correlation design handbook to calculation and examines the belt, the band pulley, the axis, as well as the key, has completed the hydraulic pressure elevator pumping station transmission system design.

首先根据液压电梯系统原理图，利用机械设计与液压传动等方面的知识计算出柱塞的直径、缸筒的壁厚以及缸底厚度，并对所得结果进行校核验证完成了工作油缸的设计；同时进行了元件的选择和计算；其次，通过系统发热量的计算和油箱冷却时需要的冷却水量的计算完成了液压电梯油箱的设计；依据系统油流状态计算出管内压力损失、局部压力损失以及总压力损失进行了系统的验算；最后通过查阅相关设计手册对带、带轮、轴、以及键进行设计计算和校核，完成了液压电梯的泵站传动系统的设计。

He said that hospital has experienced a number of AIDS-infected people, hand-holding syringes, pumping on the spot his own blood, not money on the bar-person, or bites.

他介绍，有医院遇到过一些艾滋病感染者，手拿着针筒，当场抽了自己的血，说不给钱就扎人，或者咬人。

BP has meanwhile said another method is to be tried to stop the oil leak, the pumping of mud into the blown-out wellhead.

同时，BP 承诺将尝试使用另外一种方法来阻止漏油，向源头处注入泥浆来阻止石油继续泄漏。

This paper discusses such design problems in heating systems with the pres- sureless boiler as how the pumping head of the cycle pump is selected ,where the cycle pump is installed and whether the expansion tank is necessary.

针对无压锅炉供暖系统设计中有关循环水泵扬程的选择、循环水泵的设置高度及是否设置膨胀水箱等问题从理论和实践上进行了探讨，得出了可供设计人员实际应用的计算公式，介绍了几个关键问题的处理方法，澄清了一些模糊认识。

It first appeared in 1944 in Germany, is to adapt to the pressure in the range of 10 ~ 1000Pa with a large pumping speed of vacuum melting systems use Horizontal single-stage single suction centrifugal pump a mechanical booster pump.

它于1944年首先出现于德国，是为适应在10 ～ 1000Pa 压力范围内具有大抽速的真空熔炼系统而作为机械增压泵使用。

Has production The main products are toilet pumping valve, a variety of bottle stopper and a variety of electrical lighting, sanitary supplies.

曾生产的主要产品为抽水马桶抽水阀，各种瓶盖瓶塞以及各种照明电器，洁具用品。

Not be able to choose the growth of thin and delicate fruit of the plant or after admission rhizome stubble issued pumping big bud, the seedlings grow weak, the results of late, with its high smoking bud propagation of bunchy top disease.

不能选择生长细弱的母株或收果后残株地下茎抽发出的大叶芽，此苗长势弱，结果迟，用其吸芽繁殖容易发生束顶病。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。