单词	Dual focus tube
释义	Dual focus tube 医双焦点管
随便看	internal element internal elevation internal elixir internal emf internal e.m.f internal emission line Internal emission of explosive gas Internal emission of explosive gas? internal emission of mining space internal emitter internal emitter point internal emitter resistance internal emotion internal emulsification method internal emulsifying agent internal enamel epithelium internal enclosed stairway internal encrustation Internal endometriosis internal energ internal energies of bulk matter internal energy internal-energy internal energy balance internal energy dissipation tunnel