It's analyzed and inquired into optimality design of duck propeller. Mathematical models are set up. It shows it's practicable through example.
对导管螺旋桨进行优化设计的分析与探讨，建立优化数学模型，通过实例说明其可行性。
2
The three bladed Warp Drive composite propeller was mounted between the two halves of its clamshell hub and the initial blade Angle was set.
三刀刃综合经驱动器螺旋桨展开之间的两半，其翻盖式枢纽的地位和初步的叶片角度定。
3
The hypoid gear is in common use today due mainly to the fact that the offset pinion allows the propeller shaft to be set below, (for cars) or above, (for commercial vehicles) the crown wheel center.