A transonic rotor blading was optimized successfully only by selection of the locations of maximum camber and maximum thickness for the airfoils at different span heights and how these two design parameters affecting the blade performance was .
以绝热效率为设计目标,只选择两个参数-最大弯度和最大厚度相对位置沿叶高的分布为优化参数,成功设计了一个跨音单转子压气机。
maximum blade thickness ratio
桨叶截面最大叶厚比
area of blade sectio
叶片截面面积桨叶截面面积
ellipticblade sectio
椭圆叶片截面椭圆桨叶截面
blade-thickness and rake diagram
桨叶倾角厚度曲线图
The crew feathered for the last few yards of the race.
在划船比赛到最后几码时, 全体队员回桨时把桨叶持平.
The crew feathered (their oars) for the last few yards of the race.
在划船比赛到最後几码时, 全体队员回桨时把桨叶持平.
Multiple objectives optimization of hingeless rotor tapered box-beam blades based on aeroelastic stability
无铰旋翼变截面盒型梁桨叶气弹动力学多目标优化
blade：The flattened or spoon-shaped part of an oar that touches the water during rowing.
桨叶：平面或勺状面的叶片，在桨的入水一端划动。
blade, for ship or boat propellers
大船小船用螺旋桨叶
The results showed that the influence of the lower impeller on NJSG was the largest, and three-bladed back-sweep impeller was the optimum.
结果表明，底层桨对临界搅拌转速的影响最大，最佳的底层桨为3叶后掠桨。
blade profile drag coefficient
桨叶剖面阻力系数，叶型阻力系数
It was found that fibers of circular cross section produce greater cohesion in webs and slivers than do trilobal fibers.
圆形横截面纤维在棉网和棉条中，比三叶形横截面纤维能产生较大的粘着作用。
adjustable blade
可调叶片可调螺旋桨叶
The thick, fleshy leaves are greatly enlarged and malformed.
肥厚多汁的叶子，迅速扩大成为畸形叶。
Dark green, plain/ red back. Large.
深绿色叶，叶面平坦，红色叶背。大型。
Optimization design of typical blade profile of long blade in ultra-supercritical steam turbine
超临界机组末级叶片典型截面的叶型设计
GENERAL PERFORMANCE -O the Development and Study for Propeller with New Profile and le Strengthening
冰区加强型新叶型剖面螺旋桨开发研究
To alter the pitch of(a propeller)so that the chords of the blades are parallel with the line of flight.
顺流交距把螺旋桨叶转到使桨弦大致和拉力轴线平行