“逐圆图解法”计算垂线孔有效孔径

ISSN 1671-1092　CN 33-1260/TK

于胜利, 柯传芳, 段杭

Calculation of effective aperture of plumb line hole by the circle graphic method

YU Shengli, KE Chuanfang and DUAN Hang

大坝与安全 . 2023, (1): 30 -32 .