英语词汇graded bed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	graded bed
释义	graded bed 简明释义递变层网络释义 1 ?粒级层 ... gradebuilder 斜板推土机 graded bed 粒级层 graded facies 粒级递变相 ... 短语 1 normal graded bed sequence 正粒序双语例句 1 There is no graded gravel bed to buy, transport, handle at the job site, and install. 没有分级砾石床的购买、运输、工作现场的处理和安装等问题。
随便看	direct isotope dilution analysis direct isotope dilution method direct isotopic dilution analysis direct isotopic dilution method directive directive action Directive Adherence Directive Adherence,Advance Directive,Advance directive agent directive antenna directive beacon directive breeding directive breeding test directive coefficient directive coloration directive command directive construction directive coordination directive counseling directive-drive wheel directive effect directive efficiency directive elastic modulus directive erosion

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。