“半圆周”的概念、定义、翻译、参考文献-科学参考

单词	半圆周
释义	半圆周 semi-circumference
随便看	weather instrument weather intelligence weather interference weather keyboard weather laser radar weather limitation weather log weather lore weather map weather map analysis weather map type weather-map type weather maxim weather-meter weather minimum weather modification weather notation weather observation weather observation flight weather observation ship weather observatory weather observer weatherometer weather operator weather orbiter

科学参考收录了1248194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。