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Vacuum pump exhaust because there is selective and therefore, sometimes can not meet the selection of a pump exhaust requirements, the need for several pumps together, complement each other to meet ventilation requirements.

由于真空泵有选择性抽气，因而，有时选用一种泵不能满足抽气要求，需要几种泵组合起来，互相补充才能满足抽气要求。

Is usually based on its experience and easy method to determine, for example the following several conditions are part of a larger load (ie, a larger pump exhaust tip resistance), only in the context of micro-pump selection

通常根据经验采用简便的方法确定，比如下述几种情况都属于负载较大，只能在微型真空泵范围内选型

Figure 1 is the pump in the suction and exhaust of the process, pump suction chamber with the rotor rotation, the volume gradually increases, inhalation of gas; while the exhaust chamber volume is gradually reduced, the gas is compressed, thereby exhaust gas.

图 1 是泵在吸气和排气的过程，泵吸气腔随着转子的旋转，容积逐渐增大，吸入气体；而排气腔容积则逐渐减小，对气体进行压缩，从而排出气体。

Vacuum pump exhaust because there is selective and therefore, sometimes can not meet the selection of a pump exhaust requirements, the need for several pumps together, complement each other to meet ventilation requirements.

因为真空泵有选择性抽气，因此，有时选用一种泵不能知足抽气要求，须要多少类泵组开止回，相互弥补能力满意抽气要求。

Surplus heat reclamation system of water system of gas engine driven heat pump has been designed, and security and explosion proof measure of gas engine driven heat pump's plant room has also been discussed.

对国内尚未应用的水—水燃气机热泵进行了水系统余热回收设计，论证燃气机热泵在实际工程应用中的安全与防爆问题以利于该节能新设备的推广应用。

Moreover, not just a single pump or fan, pump or blower on the joint running of the study, the use of such methods can also play a very good results.

而且，不仅仅是单台泵或风机工作，对泵或风机的联合运行的研究来说，使用这种方法也能起到很好的效果。

Selectable fan and pump curves provide reduced voltage patterns for centrifugal fan and pump loads.

可选择的风扇和泵曲面为离心风扇和泵负荷减少了电压谱。

The two variables are used to forecast cavitation in feed water pump and send an alarm signal, which is used to guide the feed water pump's process control system to prevent cavitation.

以这两个量为基础，汽蚀诊断模型能实时预报给水泵的汽蚀状态。

Vibration signal and its characteristic information in the course of running of feed water pump are significant for the state monitoring of the feed water pump system.

给水泵在运行过程中的振动信号及其特征信息对给水泵系统的状态监测有重要意义。

The feed pump is the key part of the power plant, so the reliability of the feed pump operation and its economical efficiency are seemed to be more important.

给水泵是电厂的核心设备，给水泵的运行可靠性与经济性在电厂运行中显得尤为重要。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。