睾丸下降

path of quickest descent descent of man be of good descent claim by right of descent descent descent stage descent function descent trajectory gradient descent make a descent on steepest descent algorithm make a descent upon incarceration of testicle Torsion of testicle idiopathic infarction of testicle testicle line of descent rate-of-descent control canons of descent law of descent rate-of-descent hold method of steepest descent descent of presenting part