“TN系统”的概念、定义、翻译、参考文献-科学参考

单词	TN系统
释义	TN系统 Encyclopedia 工学电气安全释 TN systemTN系统电源系统有一点直接接地，电气设备的外露导电部分通过保护导体连接到此接地点的系统。
随便看	positive linear operator positive link positive literal positive logic positive logical calculus positive logical formula positive lossless storage positively definite positively definite form positively definite kernel positively definite matrix positively definite quadratic form positively graded module positively invariant subspace positively oriented base positively semi-definite positively stable point positively stable solution positive manifold positive map positive mapping positive mass conjecture positive matrix positive measure positive metric

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。