The road vehicle is a city built drop pit pit in front of the door, often do not pay attention to the driver to drive the car stuck.
路面大坑车辆掉落市建行门前有一大坑，经常有司机开车不注意将车陷进去。
Advantages: relatively low cost of deep foundation pit, relatively small area without foundation pit.
【优点】：相对深基坑基础造价低，相对无基坑占地面积小。
Pit-limit analysis is also a valuable procedure in determining the phase pit limits.
境界分析对大型矿山确定分期开采的分期境界也具有重要价值。
Pit-limit analysis is also a valuable procedure in determining the phase pit limits.
境界分析对大型矿山确定分期开采的分期境界也具有重要价值。
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