main undercarriage meaning in English
主起落架
Examples
- Wavelets technology and wavelet packages technology for the ultrasonic testing signal of some aeroengine . turbine vane and some aeroplane main undercarriage wheel - hub axes are researched
本文研究了某型航空发动机压气机叶片和某型飞机主起落架轮毂轴套超声检测信号的小波分析和小波包分析技术。 - This paper validate the good or the bad of reachability from three point of view : firstly , putting forward reachable time and giving method that resolve the reachable time , the reachable time validate qualitative parameters with quantitative data . secondly , validating the good or the bad of reachability from view reachability , putting forward validation method of view reachability : validation method of relatively position and validation method of field of view and giving compute aided validation flow ; thirdly , validating the good or bad of rachability from space reachability , researching compute aided validation rule and contents and flow of task space . lastly , taking the group of wheel of the main undercarriage for example , illuminating compute aided validation method
针对可达性指标，本文从三个角度进行验证：第一，提出可达时间的概念，给出可达时间的求解方法，从定量的角度来衡量定性指标；第二，从视觉可达的角度来评价可达性的好坏，提出视觉可达性的验证方法：相对位置验证法和视野内切锥验证法，并给出计算机辅助验证流程；第三，从作业空间可达性的角度来评价可达性的好坏，研究了作业空间计算机辅助验证准则、内容和验证流程。