“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	ordinary aggregate ordinary algebraic branch-point ordinary arithmetic ordinary binding ordinary character ordinary chondrite ordinary concrete ordinary concrete structure ordinary congruence ordinary continued fraction ordinary convergence ordinary cosmetic ordinary curve ordinary cusp ordinary derivative ordinary dichotomy ordinary difference equation ordinary differential equation ordinary differential equation order ordinary differential equation without prehistory ordinary differential operator ordinary Dirichlet series ordinary discontinuity ordinary distribution ordinary double point

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。