英语词汇ballast layer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	ballast layer
释义	ballast layer 简明释义道碴层网络释义 1 ?道碴层 ... 沥青道床asphalt cemented ballast bed 道碴层;道碴床ballast layer 道碴ballast ... 2 ?道碴床 ... 沥青道床asphalt cemented ballast bed 道碴层;道碴床ballast layer 道碴ballast ... 短语 1 ballast layer height 碎石层高度 2 closed ballast layer 封闭道碴层 3 railway ballast layer 铁路碎石道碴层双语例句 1 The closed ballast layer can raise permafrost table, decrease annual mean ground temperature below the ballast layer, and protect the permafrost effectively. 封闭碎石道碴层可以提升冻土上限，降低多年冻土温度，对下部多年冻土起到很好的保护作用。
随便看	elevator periscope elevator phobia elevator pinion elevator pipe elevator pipe cover elevator pipe rear cover elevator piston effect elevator pit elevator pitch elevator pitch elevator plant elevator platform elevator platform elevator platform space elevator power-off protection device elevator pulling rod elevator pump elevator quadrant elevator rack elevator rail elevator raise elevator ratchet wheel elevator receipt elevator recess groove elevator rod

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。