“elementary substance”的概念、定义、翻译、参考文献-科学参考

单词	elementary substance
释义	elementary substance Encyclopedia 理学单质释 elementary substance单质由同种元素组成的纯净物质。 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 elementary substance单质
随便看	level position level premium level production level sensitivity level sensor level set level set method level-set method level set solution level shift level shift rule levels of domestic support in agriculture levels of translation level spacing level splitting level structure level surface level switching circuit level tester level testing instrument level tone level traversal level trigger level zero prevention level-Ⅰ civilization

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。