But Egypt has been building an iron barrier, sunk deep into the sandy soil, to thwart this subterranean traffic.
不过，埃及正在建造深入沙土的钢铁屏障，以阻止秘密的地下交通。
Mulch forms a barrier between the soil and the air. As a result, mulched soil will be cooler in the summertime. And in winter, it may not freeze as deeply as areas without mulch.
盖土形成土壤与空气之间的屏障，其结果是，被覆盖的土壤在夏季会较凉爽，而在冬季，不会让土壤像没有盖土的区域一样冻得那么深。
Mulch forms a barrier between the soil and the air.
覆盖物在土壤与空气之间形成屏障。
These textile materials act AS a barrier to the movement of soil particles but permit the flow of water necessary for adequate drainage.
这些纺织材料相当于一道屏障，它阻止了土壤颗粒的运动，但允许水的流动，以利于排水。
The heavy metal content of the remediated soil and the water quality of the percolate passing through the reactive barrier meet the corresponding national standard.
修复后土壤重金属含量以及通过反应墙渗滤液的水质符合相应的国家标准。
The containment barrier material consists of a filter fabric composed of woven polypropylene which allows the passage of water, but retains soil particles.
栅栏材料包括由聚乙烯织布制成的过滤布，允许水通过，但是会留住土粒。
The containment barrier material consists of a filter fabric composed of woven polypropylene which allows the passage of water, but retains soil particles.
栅栏材料包括由聚乙烯织布制成的过滤布，允许水通过，但是会留住土粒。
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