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	blandish blandisher blandishingly blandishment blandishments blandly blandness blank blankbook blank cartridge blank check blank cheque blank endorsement blanket blanket bath blanket bog blanket chest blanket-flower blanketing blanketless blanketlike blanket roll blanket sheet blanket stitch blanket-stitch

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