• secondary hydrothermal deposit

द्वि:    double acting double helical gear double

द्वि तीयक:    secondary secondary growth द्वि double

उष्णजलीय:    hydrothermal

उष्णजलीय निक्षेप:    hydrothermal deposit hydrothermal deposits

निक्षेप:    bailment deposit trust deposition cast acceptance