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

• A unique methodology providing global optimization of spacecraft protective structures is presented to minimize spacecraft weight of protective structural systems exposed to meteoroid and space debris hypervelocity impacts.
  文章描述了一个用于航天器防护结构综合优化的独特方法&几何规划优化技术，以减小暴露于流星体和空间碎片超高速碰撞环境下的航天器防护结构系统的重量。
• 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；
• 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。
• 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。
• A meteoroid that has entered the earth's atmosphere.
  进入地球大气层的流行。
• Most of the spacecrafts are suffering from the bad space environment, and the space debris, included meteoroid and orbital debris, imperiled the spacecrafts most.
  其中对航天器威胁最大的就是空间碎片，包括微流星体和轨道碎片。
• In order to ensure the safety in operation of orbital spacecrafts, especially the long duration and large size spacecrafts. Space debris and meteoroid shield are very important factors in the designing of spacecrafts.
  为了保证在轨航天器的安全运行，微流星体和空间碎片的防护成为现有航天器，特别是长寿命、大尺寸航天器设计时必须考虑的因素。
• 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。
• 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。