英语词汇“ballast pocket”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	ballast pocket
释义	WordReference Random House Unabridged Dictionary of American English © 2024 bal′last pock′et, [Railroads.] Rail Transporta depression that is formed beneath the ballast layer by penetration of ballast particles into the subgrade and that tends to collect moisture.
随便看	kashmirian kashmir rug kashrut kashruth kashubian kasi kaska kasparov kasper kassa kassala kassapa kassel kassite kastler kastor and pollux kastro kastrop-rauxel kasyapa kat- kat kata- kata katabasis katabatic

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