The anchor bolting has been widely applied in supporting structure of deep foundation pit in high building, and it maintains safety of protection structure with soil layer fixed pressure.
锚杆已广泛应用于高层建筑基坑的支护结构中，它利用地层的锚固力维持结构物的稳定。
The protection of top soil layer has utter most importance in protection of grassland resources and ecosystem, and in prevention of sandy desertification.
保护地表土层对于保护草地资源和生态环境，以及沙漠化防治具有极端重要性。
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