And the isentropic efficiency and the total pressure ratio decrease with increasing the scales of the tip clearance. 随着叶尖间隙得增加，峰值等熵效率一直降低。
The influence of liquid quantity carried out from the exit of expansion machine upon its isentropic efficiency is emphatically discussed in this paper. 本文重点探讨了膨胀机出口带液量对其等熵效率的影响。