英语词汇“initial backfill”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	initial backfill
释义	initial backfill initial backfill The material used in filling a trench from the top of the bedding to a specified height above a pipe which is laid in the trench.
随便看	nctrs ncts ncts-a imagery exploitation workstation nctsi nctsn nctsw nctt nctta ncttc ncttp ncttpc ncttrac nctts nctu nctub nctv nctvet nctvr nctvt nctw nctwb nctwc nctwr ncu ncua

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