单词	信号铃
释义	信号铃 signal bell; jingle bell
随便看	Thermionic Electrical Power Generator thermionic emission thermionic, emission thermionic emission current thermionic emission density thermionic emission detector thermionic emission-diffusion theory thermionic emission microscopy thermionic emissions thermionic emitter thermionic emitter cathode thermionic energy conversion thermionic energy converter thermionic energy generator thermionic engine thermionic-field-diffusion thermionic field emission thermionic fuel cell thermionic fuel element thermionic generation thermionic generator thermionic, generator THERMIONIC generators thermionic grid emission thermionic high voltage rectifier