“principal vertical”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	principal vertical
释义	principal vertical 主垂线
随便看	non-return-to-zero indicating non-return-to-zero-inverse non-return-to-zero inverted recording non-return-to-zero level (NRZ-L) non-return-to-zero logic non-return-to-zero mark recording non-return to zero mark recording non-return-to-zero method non-return-to-zero (NRZ) non-return-to-zero operation non-return-to-zero pulse non-return-to-zero recorder non-return to zero recording non-return-to-zero recording non-return-to-zero representation non-return trap non-return valve nonreusable nonreusable disk queuing non-reusable medium non-reusable program non-reusable routine nonreusable routine non-revenue nonrevenue equipment