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
  Synonym:meteor

双语例句

• 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；
• 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 probability of impact or failure is calculated by Finite Element Analysis Method and the arithmetic flow of spacecraft risk assessment in the meteoroid environment is designed. Second, both the earth shadowing effect and the spacecraft shadowing effect are discussed thoroughly.
  应用有限元分析方法计算碰撞及失效概率，设计出了微流星体环境风险评估算法流程。
• 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。
• 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。
• 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。
• The space debris and meteoroid environment are defined followed by the formulation of the general weight objective function.
  空间碎片和流星体环境由广义加权目标函数的公式来定义。
• 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。
• 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。