However, the accident of drill string damage happened easily in the overthrust nappe belt of these regions in the drilling.
但是，在其逆掩推覆带钻井作业中，极易发生钻具失效事故。
In present gravity exploration of overthrust nappe, people usually use gravity continuation method, forward gravity modelling method and integrated gravity-seismic interpretation method.
目前，应用重力资料研究逆冲推覆构造，多采用重力延拓法、重力模型正演法和重力、地震综合解释法。
The structural system of nappe consists of several overthrust fracture belts, thrust sheets and thrust slices, and master fault and secondary fault form an imbricate structure.
推覆构造体系是由几条逆冲断裂带及其逆冲席、逆冲片组成，主干断层与次级断层组成叠瓦式构造。
We call a system of sliding structures, including bedding slip-dessecting slip-overthrust-nappe structure, as the layer sliding structure.
我们将层间滑动—切层滑动—逆掩断层—推覆构造这—滑动构造系列称之谓层滑构造。
We call a system of sliding structures, including bedding slip-dessecting slip-overthrust-nappe structure, as the layer sliding structure.
我们将层间滑动—切层滑动—逆掩断层—推覆构造这—滑动构造系列称之谓层滑构造。
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