英语词汇“block system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	block system
释义	block system Railroads. 1. a series of consecutive blocks. Cf. block (def. 22). 2. a system of blocks and block signals for controlling train movements. [1860-65]
随便看	phot. photalgia photic photics photic zone photinia photism Photius photo photo- photoactinic photoactivation photoaging photoallergic photoanalyst photoautotroph photobiology photobiotic photocatalysis photocathode photocell photochemical smog photochemistry photochromic photochromy

英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。