当探测器最终在火星上空100米处减速时,它停留在空中并检查着陆区域。
When the probe finally slowed down at 100 meters above Mars, it stayed in the air and checked the landing area.
降落伞减速系统是空中和空间飞行器回收着陆系统的主要方式。
Parachute deceleration systems are a primary means of recovery and landing of air and space vehicles.
因为低空厚密云层滞留不去,空中的飞机都要减速,相应的有一些航班被延误5到30分钟。
Going things slow in air travel slightly in the area, causing some five to 30 minutes 'delay on a few flights in some thick low hanging clouds.
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