请输入您要查询的字词:
单词
Mizar and Alcor
释义
Mizar and Alcor
Encyclopedia
理学
最亮星表
释
Mizar and Alcor
开阳和辅
开阳,大熊座ζ,是北斗七星勺柄末端的第二颗星;辅,大熊座80星,是开阳的暗伴星,开阳和辅组成了大熊星座的一个目视双星系统。在标准历元J2000赤道坐标系中,赤经为13h23m55.5s,赤纬为+54°55′31″,距离太阳约有83光年。研究发现,开阳和辅实际上是一个六合星聚星系统。
随便看
calculation of uranium content by uranium gamma-ray logging
calculation of uranium reserves by gamma-ray logging
calculation on controlled quantity of pollutants discharge in rivers and lakes
Calculations
calculation section map of reserves
calculations of concentrator equipment
calculation with an abacus
calculation with limits
calculation with powers
calculation计算量的极小化
calculator
calculus
calculus of classes
calculus of communicating systems
calculus of communicating systems, CCS
calculus of complexes
calculus of difference
calculus of differences
calculus of finite difference
calculus of finite differences
calculus of fractions
calculus of interpolation
calculus of logic
calculus of natural deduction
calculus of observations
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:2026/8/10 8:10:47