“sunspot group”的概念、定义、翻译、参考文献-科学参考

单词	sunspot group
释义	sunspot group Encyclopedia 理学太阳物理学释 sunspot group黑子群太阳黑子大多成群出现。每个黑子群由几个到几十个黑子组成，最多可达一百多个。 Astronomy sunspot group黑子群
随便看	position classification position coder position construction position control position detector position effect position effect variegation position electron position encoder positioner position error measurement technology position four-vector position function position generator position gyroscope position head position hologram position indicating mark positioning positioning and orientation system positioning device positioning dowel positioning of column positioning of costume design positioning point

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。