分别对开口有背压活塞环和整体无背压活塞环的工作原理和结构作了阐述。
The work principle and structures of backpressure piston rings and integral non-backpressure piston rings were expounded.
按应用范围又可分为低背压式、中背压式、高背压式压缩机。
According to the application and can be divided into low back pressure type, back pressure type, in high back pressure type compressor.
目前双背压汽轮机是按单背压汽轮机来进行热耗率计算的，由此带来热耗率计算的偏差。
At present heat rate calculate of the double back pressure turbine is according to single back pressure turbine, which brings deviation of heat rate calculate.
不受背压影响，背压率可以达到进口压力的80%左右。
Carrying pressing influences, about 80% that can reach the inlet pressure while carrying the pressing rate.
提出了大型电站双背压凝汽器优化运行最佳背压的确定方法，并给出了计算模型。
Determination method of optimal back-pressure for optimizing operation of double back-pressure condensers in large-scale power plants has been put forward, and computation model being given.
以多背压凝汽器的熵产生数为目标函数，得出了多背压凝汽器的最优结构。
Taking the entropy generation number of a multi-backpressure condenser as the target function, the optimum structure of a multi-backpressure condenser has been obtained.
背压调节器的工作以及在应用需要的背压或救济的压力，控制精度高。
Back pressure Regulators work well where applications require high precision control of back pressure or relief pressures.
将背压工艺应用于泵体成形过程，使得材料在成形过程中三相受压，从而获得优于未加背压时的型腔充满度和最大载荷。
Applying inverse pressure technology to the forming process of a pump body, which results in the situation that the material is compressed from three orth...
将背压工艺应用于泵体成形过程，使得材料在成形过程中三相受压，从而获得优于未加背压时的型腔充满度和最大载荷。
Applying inverse pressure technology to the forming process of a pump body, which results in the situation that the material is compressed from three orthogonal...
将背压工艺应用于泵体成形过程，使得材料在成形过程中三相受压，从而获得优于未加背压时的型腔充满度和最大载荷。
Applying inverse pressure technology to the forming process of a pump body, which results in the situation that the material is compressed from three orthogonal...
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