“头等”概念、定义、翻译-科学时代

单词	头等
释义	请查阅头等--主要的--最上等--第一的
随便看	lead schedule lead screw pair lead screw tester lead screw tester lead seal lead seal lead-sealing lead sealing lead selenide lead selenide lead sentence lead-sheathed telecommunication cable lead sheet lead sheet lead sheet lead shield lead shielding lead shot lead sinker lead skim lead slime lead solder lead sounding lead story lead strain

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。