Operating engineers: Playing with giant toys like bulldozers, front-end loaders, backhoes, scrapers, motor graders, shovels, derricks, large pumps, and air compressors can be fun.
施工工程师：摆弄那些大型玩具可能是很有趣的，比如推土机、前载车、反向铲、刮运机、平地机、铲车、起重机、大型水泵以及空气压缩机。
Heavy haulers are especially good testbeds because they're large enough to carry the pumps and tanks the system needs to run.
重型货车是特别不错的实验台，因为这些车辆能携带系统需要运行的汽油加油泵和油箱。
Two sets of imported water pumps, large capacity water tanks and sprinkler pipes raise operational reliability.
采用进口双水泵、两个大容量水箱，两套管路提高作业可靠性。
A reform scheme with exit guide vane remained for large axial flow pumps is discussed deeply.
对大泵改造保留出口导叶的叶轮改型方案作了深入的探讨。
These two charge pumps are suitable for circuits with large power supply, and they can also operate in passive and low power systems.
这解决了电荷泵在充电期间功耗过大的问题，使它们不仅能适用于有较强电源的电路，也可以在无源或低功耗的环境下工作。
For large discharge and low lift head, it is especially suitable to use tubular pumps for their economic characteristics.
贯流泵是适用于大流量、低扬程的一种经济泵型。
The original site of China's vast rural areas, rural areas are required each year a large number of pumps, agricultural pumps are generally accounted for more than half of the total pump.
我国农村幅原广阔，每年农村都需要大量的泵，一般来说农用泵占泵总产量一半以上。
These pumps have excellent suction capabilities, are designed to handle large objects and to minimize wear.
这种泵的吸入能力极好，可以处理大型物体并降低磨损。
These pumps are suitable for clean or polluted, large quantities and low heads.
适用于清洁的或污染的、大流量、低扬程的液体。
The Westinghouse pump and motor facility has an annual repair and refurbishment capacity of more than 20 large motors and 10 pumps per year.
西屋泵浦和电机设备有年维修周期，具有每年10台泵浦和20台大电机的翻新能力。
The frequency conversion velocity modulation technique is widely applied in various industries with large economic benefit, especially in pumps system control.
变频调速技术已在各行业得到日益广泛的应用，尤其在泵类系统的控制中显示出很大的经济效益。
The basic principles of several discharge measuring methods for large sized pumps are introduced, and the results are compared from three aspects accuracy, practicability and economy.
介绍了大型水泵几种流量测定方法的基本原理，从准确性、实用性和经济性三个方面进行比较。
As a new type of power transmission device utilizing the shear of oil of film between two sets of discs. It is widely used for speed regulation and energy saving in large fans and pumps.
液体粘性调速离合器是一种靠摩擦片之间的油膜剪切力来传递动力的新型传动方式，在大功率风机、水泵调速节能方面有着广泛的应用前景。
The practical application of LB1600 large displacement screw pump systems showed that the displacement reducing are limited and energy-saving are effect compared with 95 pumps.
现场的实际应用情况说明，LB1600大排量螺杆泵采油系统与95泵、电泵相比，排量降低有限，节电效果明显。
The chillers adopt large temperature difference and variable flow, the heat pumps adopt large temperature difference and fixed flow and part heat recovery.
该系统采用了大温差变流量冷水机组、大温差定流量带部分热回收土壤源热泵机组与锅炉的组合；
A new approach is found for the research of ultra high pressure and large displacement axial piston pumps and the theoretical and experimental basis is established.
为解决超高压、大流量轴向泵的研究找到了一条新的途径，并奠定了理论和实践的基础。
This type is designed for dual or standby drives on large equipment requiring high power at high speeds such as, industrial fans, pumps and turbines.
此型号被设计用于需要大功率高速度组件需求之双动力源或备用动力源所用单向离合器，例如：工业用大型风扇、泵及透平机等。
A large number of pumps in this series have been delivered to customers at home and abroad, earning high acclaim for their superior reliability.
一本系列泵一大批已经交付给客户的国内外，赢得了他们卓越的可靠性高度评价。
Control of pumps unit belongs to large-range self-adaptive system and it is the key for equipoise operation to operate parameter in auto-regular system.
在恒压供水系统中，泵组的控制属于较大范围的自适应系统，泵组的平衡运行是自动调整系统运行参数的关键。
We discuss the application of transformer down oil pumps in large-and-medium-scale electric transformers here and demonstrate the design, experiments and applications of electric cooler transformers.
文章阐述了变压器冷却油泵应用于大中型电力变压器及电炉变压器中的设计及试验与应用。
The systems comprise two engine-driven, electrically controlled, variable displacement hydraulic pumps and four large and four small hydraulically controlled, variable displacement hydraulic motors.
两个发动机驱动的电控液压泵（排量可变），四个大型和四个小型的液压控制马达（排量可变）。
These pumps have a large selection of materials to cover a wide variety of chemical processing applications.
该系列可选用多种材料制造，适用于多种化学品的生产应用。
If large facilities to ensure no oil, no oil pump need not choose ethnic groups, such as: water pump, molecular sieve adsorption pump, sputter ion pumps, heat pumps.
若设施宽大务求无油时，无须选各族无油泵，如：水环泵、分子筛吸附泵、溅射离子泵、高温泵等。
There are a large number of centrifugal pumps in Shandong Aluminum Company. The main type of shaft seal is soft packing seal and mechanical seal.
山东铝业公司拥有大量的离心式渣浆泵，其轴封形式主要有填料密封（盘根）和接机械密封。
A new approach is found for the research of ultra high pressure and large displacement axial piston pumps and the theoretical and experimental bas...
为解决超高压、大流量轴向泵的研究找到了一条新的途径，并奠定了理论和实践的基础。
It is suitable for large and medium size water pumps, mine pumps, waste pumps and turbines.
并且特别适用于大中型排灌泵、矿用泵、杂质泵及水轮机。
With simple structure, large scope of application and lower relative cost, they are 1/6 costs of the similar foreign products, making them become the first choice of all pastures' liquid manure pumps.
其结构简单，适用范围广，相对成本较低，是国外同类产品的六分之一，是各牧场首选抽粪工具。
With simple structure, large scope of application and lower relative cost, they are 1/6 costs of the similar foreign products, making them become the first choice of all pastures' liquid manure pumps.
其结构简单，适用范围广，相对成本较低，是国外同类产品的六分之一，是各牧场首选抽粪工具。
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