权威例句
EXPERIENCE OF MANAGEMENT OF LIVER HYDATID DISEASE IN A TERTIARY CARE HOSPITAL– COMPARISON OF SURGICAL TECHNIQUES
Mars free return trajectories
High Efficiency Flight Control System for GEO Spacecraft Hall Current Thruster Orbit Transfer
Precision attitude control system for gimaled thruster
Apparatus for cultivating soil
Aerogravity-Assist Trajectories to the Outer Planets and the Effect of Drag
Mars Free Return Trajectories
Aerogravity-assist trajectories to the outer planets
Precision attitude control system for gimbaled thruster
Precision attitude control system for gimbaled thruster