“semi-automatic block”的概念、定义、翻译、参考文献-科学参考

单词	semi-automatic block
释义	semi-automatic block Encyclopedia 工学铁路区间闭塞释 semi-automatic block半自动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，自动开放、关闭出发信号机的闭塞方式。
随便看	community public service facilities community public sports facilities community questions and answers community recreation centre community regeneration community rehabilitation community relations community renewal community representation Community Research and Development Information Service of European Commission community residents conference community resources community safety regulatory agency Community safety services community sampling community security community self-governing/community autonomy community sequence community service community service center community service station(center) Community service system community shopping center community social capital Community Social Organizations

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。