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
- 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。 - 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。 - 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。 - Risk Analysis of Meteoroid and Space Debris High-velocity Impact on Spacecraft
微流星及空间碎片高速撞击航天器风险度分析 - The meteoroid bodies experiencing solar reheating during exposure have slightly lower natural TL levels than the normal ones, while the reheating events before exposure affect natural TL levels more obviously.
暴露期间经历了太阳加热的母体较正常母体具有稍低的自然热释光值，宇宙暴露前的加热事件对自然热释光值的影响更大。 - 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。 - 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。 - Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;
重点叙述流星天文学的历史与现状；流星群的地面和空间观测；流星雨观测和理论辐射点； - 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。