用“cylindrical waveguide”造句大全,cylindrical waveguide造句
Transmissionoffoil-focusedrelativisticannularelectronbeamincoaxialcylindricalwaveguideAnewwaytobuildametalhollowcylindricalwaveguideforsub-mmandmmwavesisgivenbycoatinggoldontheinner-walloftheglasstube...