单词	变电流
释义	变电流varying current
随便看	secondary infection secondary information secondary injection secondary injury secondary injury--secondary lesion-- collateral injury secondary innovation secondary input secondary input port secondary insect secondary insiders secondary instrument secondary insulation secondary integument secondary intention secondary interference secondary interstice secondary investigation secondary ion secondary-ion angular distribution secondary ion background secondary ion bombardment secondary-ion energy distribution secondary ionization secondary ion mass spectra secondary ion mass spectrometer