“人工闭塞”的概念、定义、翻译、参考文献-科学参考

单词	人工闭塞
释义	人工闭塞 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	currency currency circulation currency criminal cases currency hierarchy currency issuance reserves currency issue currency issue for economic purposes currency issue for fiscal purposes currency issue system currency management currency metabolites currency value currency wars currency withdrawal current current account Current Affairs School current algebra current amplification current analysis current awareness bibliography current balance current bias Current Bibliography on Science and Technology current blocking layer

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。