英德
有道
百度
谷歌
图片
维基
百科
喷气推进
duct propulsion
jet propulsion
jet propulsion
- 喷气推进实验室的科学家们甚至考虑在1986年哈雷彗星经过时发射一个太阳帆与它会合，并沿着它的轨迹飞行。
Scientists at the Jet Propulsion Laboratory even once investigated sending a solar sail to rendezvous and ride along with Halley’s Comet during its pass in 1986. - K21可以以每小时70公里的速度在铺设的道路上行驶，喷气推进系统能每小时加速7.8公里，以这速度可以穿越过一条河流。
The K21 can travel as fast as 70 kilometers per hour on paved roads and cross a river at a speed of 7.8 kilometers per hour with the help of its water-jet propulsion system. - 美国宇航局喷气推进实验室有关人员说，冰和尘埃粒子稀薄地分布在土星系的外边际，形成一个轨道，该轨道和土星的主环平面形成27度倾角。
The thin array of ice and dust particles lies at the far reaches of the Saturnian system and its orbit is tilted 27 degrees from the planet's main ring plane, Nasa's jet propulsion laboratory said.
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