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

• 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。
• Once it hits Earth, a meteoroid suffers an identity crisis and becomes a meteorite.
  流星体一旦撞上地球，就变成了陨石。
• 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
• 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。
• The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.
  彗星的喷发速度在流星群的演化过程中起着重要作用。
• A meteoroid that has entered the earth's atmosphere.
  进入地球大气层的流行。
• 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。
• 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。
• 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。
• 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。