A soft landing means a spacecraft has a slow, controlled descent.

软着陆指宇宙飞船以缓慢可控的速度着陆。

Some of them stay aloft due to upward convection from the sun-heated ground, but most are in a state of slow, balletic descent.

有一些云飘浮在空中，是因为受到了太阳照射地面热气流上升的影响，但大部分云还是在优雅而缓慢地下降。

Then, Vladimir Komarov became the first person to die returning from space when his  parachutes failed to slow his descent from orbit.

然后，弗拉基米尔·科马罗夫 (Vladimir Komarov) 成为第一个在从太空返回时遇难的人，当时他的降落伞未能减慢他从轨道下降的速度。

A soft landing means a spacecraft has a slow, controlled descent and spacecraft from only three countries the United States, China and the former Soviet Union have ever done this.

软着陆意味着飞船有一个缓慢的，控制下降，只有来自美国、中国和前苏联三个国家的航天器做到过这一点。

Astronauts Doug Hurley and Bob Behnken landed gently in the Endeavour capsule off Pensacola, Fla., at 2: 48 p.m. EDT, assisted by two sets of parachutes that slowed the descent.

下午 2 点 48 分， 宇航员道格·赫尔利 (Doug Hurley) 和鲍勃·本肯 (Bob Behnken) 在佛罗里达州彭萨科拉 (Pensacola) 附近的奋进号太空舱中轻轻着陆。 美国东部时间， 在两套降落伞的帮助下减缓了下降速度。

Footprints published in 2009 suggest that it  probably slowed its descent using its wings, and landed lightly on its feet, dragging its toes and hopping forward  slightly before putting its hands down.

2009 年公布的足迹表明， 它可能使用翅膀减慢了下降速度，并用脚轻轻着地， 拖着脚趾向前跳跃， 然后放下手。

Free itself from the parachute; perfectly fire eight rocket engines to slow final descent; drop down, dangling on four cables; lock its wheels in place just before landing; and cut the cables right at the moment of touchdown.

从降落伞中挣脱出来；完美启动 8 个火箭发动机以减缓最终下降；下坠，吊在四根缆绳上；在着陆前将轮子锁住；在着陆的瞬间切断缆绳。

Then came more mountains, streaked with red like gums bleeding over rotten teeth, and then a glimpse of green in the midst of the blasted, Martian landscape, and then a slow descent and 'please fasten your seat-belts and extinguish your cigarettes'.

然后是更多的山脉， 上面有红色条纹， 就像牙龈在烂牙上流血一样，然后在爆炸的火星景观中瞥见绿色，然后缓慢下降， “请系好安全带并熄灭香烟” 。