back-fill

基本解釋

One common method uses alternating layers of welded wire matting with layers of compacted back-fill earth from the landscaping site.
一個常見的方法是使用電焊交替層與層壓實回席子，填補網(wǎng)站的美化地球。
By analyzing a practical project, the application of this technique in waste back-fill foundation of coalmine subsidence area is discussed.
結(jié)合工程實例，論述了該技術(shù)在煤礦塌陷區(qū)矸石回填地基中的應(yīng)用。
Starting with analysis of goal of mining using back-fill method, the course of rock mechanics analysis is explained.
從分析冶金礦山充填采礦法開采的目的入手，探討性地說明了相關(guān)的巖石力學(xué)分析過程。

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to refill an excavated trench, esp (in archaeology) at the end of an investigation
the soil used to do this