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	Lange-Akeroyd syndrome Lange Akeroyd syndrome lange-angle Langebaan Langebaanweg Langeberg Lange coupler Langedalsvatn Lange, Dorothea Lange facial deformity Lange folds Lange Glacier Lange glossmeter Lange gold sol test Lange gold-sol test Lange Hohman elevator for osteotomy Lange-Hohman elevator for osteotomy Langeid Langeidvatn Langel Langeland Langelier index Langelille langell Langella

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。