“变号”的概念、定义、翻译、参考文献-科学参考

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。

单词	变号
释义	变号 reversal sign reversal
随便看	cone and jet cement mixer with hopper cone-and-plate viscosimeter cone-and-socket arrangement cone-and-socket joint cone angle cone antenna cone-apex angle cone-baffle classifier cone bearing cone bearing test cone belt cone blender cone bottom cone bottom bucket cone-bottom condenser cone-bottom gas-dispersion agitator cone-bottom tank cone brake cone capacitor cone cell cone center cone-channel condenser cone-channel condenser optics cone chuck cone classifier