沉陷
[chén xiàn]
- na.subsidence; settlement; sinkage
- Webebbing; downpunching; depression
Definition:
AllAll,subsidencesubsidence,settlementsettlement,sinkagesinkage,ebbingebbing,downpunchingdownpunching,depressiondepression
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The applications of the composed rock timber theory in ground control and surface subsidence control as well as gas prevention in . . .