定常升力 meaning in Chinese

steady lift

The theoretical calculation method about how to predict the hydrodynamic characteristics of ichthyoid rudder is proposed in this paper
本文提出了一种鱼形舵定常升力的水动力性能预报的理论预报方法。
The results of the lift interference are given here as a result of a series of rudder of different aspect ration fitted to different location of the fornication . in the second part , the device of open water experiment of ichthyoid rudder is present
提出了一个估算鱼形舵定常升力的方法，计算了一系列不同展弦比、不同翼型、不同位置分叉点及尾缘剖分角对鱼形舵影响下的升力。