而其独特的井字状城市格局也清晰地呈现在图片的左上角,围绕着城市的环形高速路也正在向周边快速辐射开去。
Its regular grid pattern is clearly visible at image upper left; concentric rings of major roadways around the city have been added as the metropolitan area has expanded.
采场切割井用中深孔一次爆破技术,采场周边及上盘则采用光面爆破技术,确保采场稳定。
One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.
充分利用竖井地理、地质等周边施工条件,采用反导井法进行竖井施工。
The new method takes full advantage of surrounding construction conditions such as the geography and geologic condition of shaft and adopts reverse guide shaft to construct shaft.
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