In May 1911 the Mayfly was found to lack sufficient lift to get airborne.
一九一一年五月,发现“蜉蝣号”飞艇的升力不足.
The cross section of a bridge deck may twist as a result of excessive life.
桥面横断面可能由于过量的升力而发生扭转.
This induced flow produces a positive moment that increases with wing lift or a.
这一诱导气流产生正的力矩,该力矩随升力或迎角a的增加而增加.
Bending moments produced by lift generally have only a small effect on the resultant bending moment.
一般由升力所产生的弯矩对最终的弯矩只有很小的影响.
This compensates backward movement of the lift forces as shock waves develop.
这样补偿了当激波产生时升力向后的运动.
C is a selected blade lift coefficient at the blade tips.
C是在叶尖处的选定叶片升力系数.
Flapping wing hour, there is a greater lift force too.
扑翼时, 也有较大的升力.
Airplanes need lift to fly, and the wings help give them lift.
飞机飞行需要抬升力, 而机翼能提供飞机飞行需要的抬升力.
The bionics significance of this new explanation is pointed out.
指出了用“柔性楔形效应”解释昆虫飞行高升力的仿生学意义.
This difference in lift can make it hard to maintain level flight.
这种差异能够产生保持直升机水平飞行的升力.
This invention relates generally to a lift augmentation system for an airframe.
本发明总体涉及一种用于飞行器机体的提升力增大装置.
The analysis shows that the calculated the experimental data.
经算例分析,表明该涡激升力的频谱表达式是较准确的.
Weis - Fogh mechanism is an efficient method to generate high lift or propulsion.
Weis -Fogh机构能够高效率地产生升力或推力.
This pushing and pulling force is called lift.
这种推和拉的力量就叫做升力.
This faster - moving air provides the pelvic fin with additional lift.
这快速流动的气流为腹鳍提供了额外的升力.