A method of teaching Dirac symbols that the abstract is represented by the specific is presented. A ket vector and a bra vector can be regarded as a column matrix and a row matrix,respectively.是什么意思_A method of teaching Dirac symbols that the abstract is represented by the specific is presented. A ket vector and a bra vector can be regarded as a column matrix and a row matrix,respectively.在线翻译_英语_读音_用法_例句