soft touchdown造句

• For these reasons, the post-launch flight test did not involve the barge, but instead attempted a soft touchdown over water.
• During the 18 April test, the CRS-3 booster became the first successful controlled ocean soft touchdown of a liquid-rocket-engine orbital booster.
• The orbiters sent the first global maps of Mars back to Earth the following year, and the landers made the first successful soft touchdowns by spacecraft on another planet.
• In a press conference at the National Press Club on April 25, Elon Musk said that the first stage achieved a soft touchdown on the ocean but due to rough seas, the stage was destroyed.
• :: The second test flight, which occurred less than a month ago but after the DYK nomination, was successful in accomplishing the first-ever soft touchdown of an orbital rocket accomplishing a vertical " landing ".
• First stage of Falcon 9 Flight 21 descending over the floating landing platform, 17 January 2016, immediately prior to a soft touchdown followed by deflagration of the rocket after a landing leg failed to latch, causing the rocket to tip over.
• The "'Lunar CATALYST "'( "'Lunar Cargo Transportation and Landing by Soft Touchdown "') initiative is an attempt by NASA to encourage the development of robotic lunar landers that can be integrated with United States commercial launch capabilities to deliver payloads to the lunar surface.