机译:Bennu and Ryugu: diamonds in the sky
Okinawa Inst Sci & Technol Grad Univ, Fluid Mech Unit, Onna Son, Okinawa, Japan;
Rutgers State Univ, Dept Biomed Engn, Piscataway, NJ USA;
Rubble pile asteroids; Rotating asteroids; Granular material; Discrete element method;