New words and phrases land subsidence hazard maps地面沉降灾害地图 accumulative land subsidence累计地面沉降量 the critical subsidence临界沉降量 contour map等直线图 preventive and remediation measures防治方法 administrative regulation行政管理 flood-proof wall防汛墙 artificial recharging人工▣灌 benchmarks水准点 silty clay soils淤泥质黏土 mucky soft soil淤泥质软土 porewater pressure孔隙水压力 New words and phrases land subsidence hazard maps 地面沉降灾害地图 accumulative land subsidence 累计地面沉降量 the critical subsidence 临界沉降量 contour map 等直线图 preventive and remediation measures 防治方法 administrative regulation 行政管理 flood-proof wall 防汛墙 artificial recharging 人工回灌 benchmarks 水准点 silty clay soils 淤泥质黏土 mucky soft soil 淤泥质软土 porewater pressure 孔隙水压力