The structural upgrade consisted of converting the multiple arch to basically a gravity structure by partially infilling the arch bays with conventional concrete.
这座大坝的改造升级，采用方法是用普通水泥浇筑拱槽，把基本上是重力结构的大坝部分改建为多拱大坝。
The structure would not only house thousands of families, but its movements would simulate Earth's gravity.
这座城市不仅可以容纳上千户家庭，而且可以模拟地球上的重力环境。
The main task is to research relation of all kinds of fault models fault positions and gravity anomaly linear structure signal maximum positions.
其主要任务是研究各种断裂模型中断裂位置与重力异常线性构造信号极大值位置之间的对应关系。
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