英语词汇semi-automatic block system怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	semi-automatic block system
释义	semi-automatic block system 简明释义半自动闭塞网络释义短语 1 all-relay semi-automatic block system 继电半自动闭塞
随便看	compaction rate compaction ratio compaction roll compaction compaction shale compaction stage of argillaceous sediment compaction table compaction test compaction test apparatus compaction weight compactive compactivity compact knowledge base compact laboratory compact laboratory compact laser compact layer compact layout compact Lie group compact limestone compact linear operator compact liquid jet compactly compactly generated group compactly generated lattice

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。