The advanced small gasturbines feature small mass flow ratio, short vanes and blades with low aspect, high second flow and blade tip leakage losses, and low efficiency.
先进的小发动机涡轮的流量小，叶片短，展弦比低，二次损失及叶尖漏泄损失大，效率低，温度高冷效差。
2
In case a large leakage of steam occurs, the engine efficiency will fail.
如果蒸汽大量泄漏，引擎效率将会降低。
3
The leakage of piston pairs has great influence on hydraulic pressure systems service behavior and operating efficiency.