英语词汇“position light signal”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	position light signal
释义	position light signal noun : a fixed railroad signal that gives its indications by varying the positions of two or more lights
随便看	trek trekboer trekker trek ox trek wagon trelessness trellage trellis trellis trellis cipher trellised trellised trellised armor trelliswork trem trema trema -trema tremadoc tremalith tremando tremandra tremandraceae tremandraceous tremata

英语词典包含332784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。