英语词汇“layer of ballast”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	layer of ballast
释义	layer of ballast 道碴层
随便看	horizontal bench drill horizontal-bench drill horizontal bench milling machine horizontal bend horizontal bicycle stand horizontal black bars horizontal blackout period horizontal blade strut horizontal blanket drainage horizontal blanking horizontal blanking impulse horizontal blanking interval horizontal blanking level horizontal blanking multivibrator horizontalblanking multivibrator horizontal blanking period horizontal blanking pulse horizontal blanking siganl horizontal blanking signal horizontal blanking time horizontal blasting horizontal blind horizontal blinds horizontal block horizontal blowing engine 送将来送归云去雁送归妾送我今夜岳阳楼送我至剡溪送数声惊雁送春春去几时回送春春去几时回送春滋味送望眼 64710 64711 64712 64713 64714 64715 64716 64717 64718 64719