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-现代词典

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	fideicommissary fideicommissum fidei defensor fideism fideist fideistic fidel fidelio fidelism fidelist fidelista fidelity fidget fidgeter fidgetingly fidgety fido fiducial fiducially fiduciarily fiduciary fiduciary bond fiduciary issue fie fiedler

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