Engineering methods and measures to curvecut-off in the reach from Dagong to Wang 'an are mainly introduced in order to supply reference for abnormal river pattern training.
着重介绍了黄河下游大宫至王庵河段裁弯取直工程的方法和措施，可作为其他畸形河势治理时参考。
2
Receiver operating characteristic (ROC) curve was used for analyzing results and selecting cutoff values.
根据受试者工作特征曲线（ROC）分析结果并选定阳性参考值。
3
Results Score of optimal cutoff point of cerebral vascular hemodynamic indexes was under 75 in ROC curve analyses.