请输入您要查询的字词:
单词
Lunar Laser Ranging
释义
Lunar Laser Ranging
Encyclopedia
理学
激光测卫
释
Lunar Laser Ranging
月球激光测距
地面测站上的发射望远镜向月球发射脉冲激光,经过月球表面上的光学四面体棱镜即后向反射器的反射,激光回波沿原路径返回到达地面上的接收望远镜,通过测定激光往返所需的时间,乘以光速便得到地月之间的距离的技术。简称LLR。
随便看
medical magnetic resonance devices
medical magnifier
medical malpractice
Medical Management Engineering
Medical Manuscripts from the Dunhuang Caves
medical mask
medical material testing and analysis
medical meteorology
medical microbiology
medical model for simulated weightlessness
medical monitor
medical monitoring for astronaut
medical morality
medical natural polymer
medical notes
medical nuclear imaging equipment
medical nuclide device
medical observation
medical officer in the Western Zhou Dynasty
medical optical devices, instruments and endoscopic devices
medical optical divices spare parts and accessories
Medical Organizations with Various Forms
medical park
medical parole identification
medical patent protection
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/6/21 18:57:33