气膜孔流量系数随动量比的增大而增加，在小动量比下，影响尤为明显；
The film hole flow coefficient is increased with momentum ratio, especially when momentum ratio is small.
着重介绍了气膜冷却、涡轮叶片内流冷却技术和气膜孔流量系数的研究进展。
Particular emphasis is given to the development of film cooling, internal cooling technologies and film hole discharge coefficients.
应用微扰方法和有限元法，对端面气膜密封三自由度微扰下，密封气膜的刚度和阻尼系数进行了数值求解。
The small perturbation method and the finite element method were used to calculate the stiffness and damping coefficients of a gas film with three degrees of freedom for a gas film face seal.
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