4周搞定2000+托福核心词
航天飞行器
spacecraft
常考释义
Astronomers can tell that it lacks a dense core from the details of its gravitational pull on the Galileo spacecraft during several very close flybys.
在几次近地的飞行中，通过伽利略号宇宙飞船的重力探测，天文学家可以知道木卫四缺乏一个高密度的内核。
来源于：阅读OFFICIAL42 P3n. 航天（飞行）器【航天】
NASA used the Titan II to launch Gemini spacecraft in the 1960s.
美国国家航空暨太空总署在60年代利用泰坦2号发射双子星号宇宙飞船。
I get it. RTGs are good for spacecraft.
放射性同位素热电机对航天器是好东西。
来自《火星救援》
图片源自网络
This color-coated image of the SPA Basin, those aren’t its actual colors obviously, this image is from the mid-90s, from the American spacecraft called Clementine.
可以看到SPA盆地上一层着色的图层，很明显这不是它真实的颜色。这张图拍摄于九十年代中期，来自名为克莱门的宇宙飞船。
来源于：听力OFFICIAL5 L3The Mariner spacecraft found that the surface of Mars, as well as that of its two moons, is pitted with impact craters formed by meteoroids falling in from space.
水手计划中的宇宙飞船发现在火星表面布满来自太空的流星撞击表面形成的陨石坑，火星的两颗卫星也是如此。
来源于：阅读OFFICIAL25 P1Astronomers can tell that it lacks a dense core from the details of its gravitational pull on the Galileo spacecraft during several very close flybys.
在几次近地的飞行中，通过伽利略号宇宙飞船的重力探测，天文学家可以知道木卫四缺乏一个高密度的内核。
来源于：阅读OFFICIAL42 P3From 1996 to 1999, the Galileo spacecraft passed through the Jovian system, providing much information about Jupiter's satellites.
从1996年到1999年，伽利略号宇宙飞船围绕木星飞行，提供了很多关于木星的卫星的信息。
来源于：阅读OFFICIAL42 P3There're lots of mascons on the moon too, where a mascon's density causes a small increase in the local gravity that can be measured and mapped by orbiting spacecraft.
月球上也有很多的陨石坑。这些陨石坑导致其周围地区的引力变大，进而可以通过沿轨道运行的航天器来测量和定位。
来源于：听力OFFICIAL35 L6以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
