we punched hole in the centre of the scar with hydroelectric shock waves for long segment urethral complete occlution.
对长段后尿道闭锁,采用经膀胱后尿道置入探条及肛指引导,液电效应或微波闭锁瘢痕中央打孔会师。
methods for calculating expanded size of punched hole and compression punching type are introduced.
简述抽孔、压缩抽型的展开时几种情况下的计算方法。
as current collector, punched hole steel strip was used widely in the alkali nickel battery.
穿孔钢带作为集流材料在堿性镍电池中得到了广泛应用。