meteoroid
英
美
n. 流星体
COCA.28488
英英释义
noun
- (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
双语例句
- Technically, a meteor is merely the streak of light we see trailing a meteoroid.
严格说来，流星仅仅指流星体身后的那一道光，也就是我们看着划过天空那一道。 - When a meteoroid enters the atmosphere, it compresses the air in front of it.
当流星体进入大气层，它压缩的空气在前面的。 - And even smaller type of interplanetary debris is the meteoroid.
甚至更小的太阳系内的碎片也是流星体。 - Studies on meteoroid streams are briefly and systematically presented.
对流星群的研究作了简明而系统的介绍。 - By analyzing performance prediction equations developed and used for protection of spacecraft against meteoroid and space debris, ballistic limit curves were obtained for different hypervelocity impacts of various shield materials and structures.
在综合分析国际上已采用和研究航天器微流星体及空间碎片防护结构防护性能预报方程的基础上，给出了不同防护材料和结构形式防护在超高速撞击下的撞击极限曲线。 - Turn the globe by just a few hours earlier on that day in June and the meteoroid would have been over the border of Pakistan and India – exactly where everyone was fearing a nuclear attack.
如果六月的这天，地球转动退回到几小时前，流星降落的地方就正好是巴基斯坦和印度的交界处，世人唯恐发生核战的交界地。 - A meteoroid that has entered the earth's atmosphere.
进入地球大气层的流行。 - Bill Cooke of the NASA Meteoroid Environment Office said, Observers with clear skies could see as many as 40 Geminids per hour.
来自NASA流星体环境研究所的BillCooke表示：如果天气晴好，观测者每小时能看到40颗双子座流星。 - That's when a meteoroid entered the earth's atmosphere over the Mediterranean and was picked up by U.
美国预警卫星在监测高空爆炸物和来袭导弹时发现一颗流星穿破地球大气层，降落在地中海地区。 - So far many countries are researching the technology of risk assessment of space debris impact, some of them already have a risk code, which can be used to value the risk assessment for the spacecraft in both meteoroid and orbital debris environment.
目前各航天大国都在研究航天器风险评估技术，有些国家已经有了成熟的风险评估软件，可针对微流星体环境和轨道碎片环境分别对航天器进行风险评估。