英语词汇“sub ballast”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	sub ballast
释义	sub ballast 🌏底层道碴；道喳
随便看	rating form for budget rating form for estimate rating formula rating fraction rating function rating identification rating indicators rating integer rating item ratingized system rating level rating life rating-life rating loop rating matrix rating mechanics rating mechanization rating method Rating model rating number rating nut rating of a lamp rating of an electric vehicle rating of approximate estimate rating of bridge