v.gather into a huge mass and roll down a mountain, of snow
同义词：avalanche
About the Author List of Symbols and Abbreviations
Experimental Investigations of the Comet Lander Philae Touchdown Dynamics
Rosetta lander Philae – Landing performance and touchdown safety assessment
Philae-Lander touchdown dynamics revisited - tests for the upcoming landing preparations
Hookah use: going down in smoke
ROSETTA lander Philae: Touch-down reconstruction
Recording the PHILAE Touchdown using CASSE: Laboratory Experiments
Recording the PHILAE Touchdown using CASSE: Laboratory Experiments
A method for inverting the touchdown shock of the Philae lander on comet 67P/Churyumov-Gerasimenko
BOBKE'S TOUR DE FRANCE BREAKDOWN
