Read Edit View history 减速火箭 jiǎnsùhuǒjiàn retrorocket Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 减速火箭/ 減速火箭 jiǎnsùhuǒjiàn retrorocket a rocket engine that provides thrust in the opposite direction to the motion of a spacecraft, used to slow it down Edit Delete References Add reference classifier 减速火箭/減速火箭 → 枚/枚 Edit Delete
减速火箭/ 減速火箭 jiǎnsùhuǒjiàn retrorocket a rocket engine that provides thrust in the opposite direction to the motion of a spacecraft, used to slow it down Edit Delete