“manual block”的概念、定义、翻译、参考文献-科学参考

单词	manual block
释义	manual block Encyclopedia 工学铁路区间闭塞释 manual block人工闭塞人工确认相邻两铁路车站间区间线路空闲、办理和解除闭塞，且在值班员与司机间人工交接行车凭证的闭塞方式。
随便看	selection index system selection intensity selection limit selection matrix selection methods of breeding selection network selection nursery selection of absolute value Selection of Best Proses in Ancient Time selection of books selection of bud sport selection of collection selection of drug synthesis route Selection of Economic Profiles of the People's Republic of China selection of filling material selection of furnace design parameters Selection of Important Documents of the People's Republic of China selection of lemma selection of low-level military officials selection of main equipment for thermal power generation selection of mining equipment selection of mining method selection of multifunction selection of national excellent doctoral dissertations selection of open-pit drainage

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。