查询词典 pumping-back method

The pumping unit with compound-motion wheel and tie bar is a long-stroke pneumatic balanced pumping unit.

复动轮拉杆式抽油机是根据我国油田的特点和采油工程的需要而重新设计的一种长冲程气平衡式抽油机。

TW-600 Outside pumping vacuum packer: using air pressure style sealing, and it is clean and reliable; adopting the Japanese and Korea technology and equipment, is provided with dual functions of vacuum and charge; the whole machine circuit is from Korea and is programmable control, and is stable; sponge shape silica gel bar to ensure a fine airproof after pumping out the air; using the variable stroke air cylinder to make sure the sealing is neat and tidy; it is a perfect safe packaging after the product charge; stainless platform, and can adjust the height freely in terms of the size of the packaging goods; and also can change the work place easily for its installing truckle; simple style storage case to store the vacuum packaging bag or spare part in common use; Light touch style padding switch can be operated conveniently.

TW-600外抽式真空包装机：采用气压式封口，干净、可靠；日、韩先进的技术设备，具有真空及充气双重功能；整机电路由韩国可编程控制，性能稳定；海棉状硅胶条，确保抽气后密封良好；采用变行程气缸，使封口整洁平整；充气后产品理想的安全包装；不锈缸工作台，根据包装物的大小，任意调整高低；装有脚轮，可任意移动工作地点；简易型储物盒，存放真空包装袋或常用备件；轻触式脚踏开关，方便操作。

The lifetime of the electrical submersible pumping unit is the main factor affecting the overhaul period of electrical pumping unit.

对电泵井故障模式的调查和统计表明，潜油电泵机组使用寿命是影响电泵井检修周期的主要因素。

Rotary piston pump is a new structure of water pumps, running a very reasonable job, using the principle of variable volume compression job, a direct-driven rotary manner, as opposed to centrifugal pumps have a series of outstanding performance advantages, rotary piston pump with the complexity of the structure of the centrifugal pump, as with the shell and the rotor blades of the rotor and casing of the rotary continuous variable volume zone, the formation of continuous expansion and compression, pumping and pumping implementation functions.

旋转活塞水泵是一种新型结构的水泵，工作运行状态十分合理，采用变容积压缩原理工作，直接旋转方式驱动，相对于离心式水泵有一系列突出的性能优势，旋转活塞泵结构的复杂程度与离心泵一样，由外壳和带叶片的转子组成，转子与外壳形成连续的旋转变容积区，形成连续的扩张和压缩，实现抽水和扬水的功能。

The influences of forward pumping time and reverse pumping time on interruption time, voltage gain, and energy transfer efficiency are obtained.

实验获得了截断时间、电压增益和能量传递效率与正、反向泵浦时间的依赖关系以及SOS截断过程中的阻抗变化特性。

Using the new model, we have analyzed the influence of longitudinal-mode number, bandwidth and line-width of pumping source on SBS reflectivity, and pointed out the monochromaticity of pumping laser has obvious affect on optical fiber conjugator.

为此，本文第二章在分析了多模石英光纤作为相位共轭介质和其它介质的异同的基础上，首次为光纤相位共轭器建立了多纵模激光泵浦下的受激布里渊散射理论模型。

Double horse-head pumping unit is a new generation equipment, which is developed at the basic of the conversional beam pumping unit.

双驴头抽油机是在常规型游梁式抽油机的基础上发展的新一代抽油设备。

A new sucker-rod pumping system of double-layer separate recovery is developed in order to solve the interbedded disturb problem of multilayer heterosphere oil-field radically. The present fault diagnosis technique can't well suit to diagnose the pumping system. So far, the public reports in the field are few at home and overseas.

为从根本上解决多层系、非均质构造油田的层间干扰问题而研制的两层分采同步抽油系统是一种新型的采油设备，现有的采油系统领域的故障诊断技术难以满足对该系统进行故障诊断的需要，国内外也没有这方面的研究报导。

Based on data of pumping test, this paper summarized the variational law of well in phreatic aquifer of loess and the diversified relationship between water table and pumping time.

本文根据抽水试验资料总结了黄土潜水井水跃值的变化规律并分析了其成因；总结了水位降深随抽水时间的变化关系，并建立了经验公式；提出了公式中参数的确定方法。

For the relationship between groundwater storage system and sustainability of groundwater resources, the regulation ability of groundwater storage system was analyzed, some measures was put forward to prevent the continuous depression of groundwater table, which includes: controlling the total pumpage in the whole basin, controlling the pumping intensity in the local area, and for the user with large amount of water requirement, a suggestion of expanding the well-field area or increasing well-field to reduce pumping intensity was proposed.

从储存系统与地下水资源可持续性间的关系，分析了区内储存系统的调节能力，对防治区域地下水位持续下降提出了相应的措施：全盆地范围内控制开采总量，局部开采地段控制开采强度，对需水量较大的用户，建议扩大水源地面积或新建其他水源地以控制单个水源地的开采强度。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。