查询词典 pressure pump

Accordingly, the determination of the reasonable submergence pressure of pump depends on the harmony of every producing subsystems of the oil well.

因此 ，如何根据油层和油井的实际状况，确定抽油泵合理的沉没压力，是油井生产中的重要问题之一。

Pump up for suction then disconnect the bulb, pressure will stay.

为吸泵然后断开灯泡，压力将继续。

The maximum pressure head generated, an indication of the pump performance, is found to depend on the surface charge density, capillary size and bulk concentration of working fluid.

最大压力提升是泵浦模式的指标，因此在本文中得知会受到壁面电荷密度、管径大小和工作流体浓度影响而变化。

Second the characteristicsSingle-stage single suction in-line centrifugal pump of Roots vacuum pumps: comparison with other oil seal vacuum pumps have the following characteristics: 1 in a wide pressure range with a large pumping speed; 2 the rotor has a good geometric symmetry it is vibration smooth operation.

二、罗茨真空泵的特点：与其它油封式真空泵相比有以下特点： 1、在较宽的压力范围内有较大的抽速； 2、转子具有良好的几何对称性，故振动小，运转平稳。

The use of temperature control through the transformation of the main pressure control for variable frequency control Shop for closed-loop motor pumps, water pumps, electric power saving rate of the average at more than 30%; 90KW chilled water pump motor current by adjusting the valve at the changes between the 163-148A, the average section less than 6% of electricity by the transformation of the closed-loop control of VVVF, the saving rate is more than 30%.

通过改造采用温度控制为主，压力控制为铺进行闭环变频控制水泵电机，水泵电机平均节电率都在30％以上；90KW冷冻水泵电机靠调节阀门电流在163—148A之间变化，平均节电不足6％，经闭环控制变频调速改造后，节电率平均也在30％以上。

A tradeoff between turbine temperature and pump discharge pressure is normally made to establish the turbopump requirements.

一权衡之间的温度和涡轮泵的排气压力，通常建立涡轮泵的要求。

Screw pump is a new type of liquid delivery of machinery, with a simple structure, safe and reliable use of easy maintenance, a continuous uniform fluid, pressure, stability and so on.

螺杆泵是一种新型的输送液体的机械，具有结构简单、工作安全可靠，使用维修方便、出液连续均匀、压力稳定等优点。

If the spring tension on the unloader is set low, pump pressure will be low because water is bypassing the nozzle.

如果减荷器的弹簧张力设置的很低的话，泵压会很低，因为水会通过喷嘴。

LTHJ-SUPER-A2 welding manipulator automatic recovery machine(Condensed air is needed0.4-0.8Mpa) This system is set for welding manipulator,special cylindrical welding tools or difficult welding .It adds super negative pressure wind pump on inner side offlux cylinder,so that in the welding process it can absorb unmelted flux directly into cylinder and place into a small hopper.Open the valve of small hopper and put flux onto work piece,then you can put it into reprated usage.

LTHJ-SUPER-A2型操作机正压自动回收机（需压缩空气0.4-0.8Mpa）本系统是为一体超强新型的操作机或外圆焊接特制工具、高难度的焊接而设置的，它利用压缩空气，将在焊接过程中尚未溶化的焊剂直接吸收到桶内，放置到小料斗中，打开小料斗阀门把焊剂放到工件上，进行往复使用。

Vacuum pump, under pressure in their work should be able to discharge process vacuum equipment in all the gases produced.

真空泵在其工作压强下，应能排走真空设备工艺过程中产生的全部气体量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。