Which of the following titles is suitable for a research paper?with the key words “unmanned air vehicle” and “ engine”
A: Design, build and test an unmanned air vehicle
B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification
C: Unmanned air vehicles under external impact
D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft
A: Design, build and test an unmanned air vehicle
B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification
C: Unmanned air vehicles under external impact
D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft
举一反三
- Which of the following titles is suitable for a research paper?with the key words “unmanned air vehicle” and “ engine” A: Design, build and test an unmanned air vehicle B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification C: Unmanned air vehicles under external impact D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft
- “Drone”as in the “Drone delivery”refers to Unmanned Aerial Vehicle (UAV) .（ ）
- 有缆遥控潜水器是下列哪个( ) A: UUV(Unmanned Underwater Vehicle) B: AUV(Autonomous Underwater Vehicle) C: HOV(Human Occupied Vehicles) D: ROV(Remote Operated Vehicle)
- Which of the following may lead to the engine NOT to start on air?（）
- Which cause of the following can lead to the engine not to start on air?（）