Calculation of earth pressure of active retaining wall with logistic spiral sliding surface 用对数螺线滑动面计算挡土墙主动土压力
Study of Qualitative Diagnosis of Inferior Extremity Bile Duct Obstructive Lesions with Spiral CT by Logistic Regression Model 螺旋CT定性诊断胆管下端梗阻性病变的logistic回归分析