effective lap有效搭接effectiveadj.有效的；生效的；实际的effective biological dose有效生物学剂量effectiveness of teaching教学效益effectiveness of distance距离有效性effective overload output有效超载功率effective frequency range有效频率范围effective magneton number有效磁子数effective field intensity有效场强effective noise bandwidth有效噪声带宽effective radiation power有效辐射射功率effective source position有效源位置