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
- 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。 - 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。 - 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。 - 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。 - Studies on Meteoroid Streams
流星群研究 - 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。 - Given enough time, the tensile stress in the interior of the meteoroid can be as high as 10 kb. This stress value is greater than estimated tensile strengths of meteoroids and the aerodynamic compression they encounter.
在某个充分的时间内，陨星内部的张应力可能达到10kb，这一应力值大于估计的抗拉强度及其所遭受的空气动力学压力。 - 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。