该弹簧臂与所述滑动表面之间的接合产生了开启所述阀的上举力。
Engagement between the spring arms and the sliding surface creates a lifting force which opens the valve.
分析了使护坦板块失稳的上举力的成因； 指出了增加护坦板稳定性的条件。
The lift force due to the action of jet flow is analysed and the conditions of improving the safety factors of apron slab are presented.
这个很有意思，明轮推水或者桨叶方式的推水产生了上举力和向前的推力，在这种情况下上升力和推力会叠加在一起。
Interestingly, the paddle wheel or propeller style movement creates lift and thrust. In this case lift adds to thrust.
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