双音节的 meaning in English

disyllabic
disyllable

Also discussed in the essay is the strict control over the deviation in assessment - the control over the deviation in rating , the degree of difficulty , reliability and validity , the controlling effect of single and double syllables and the equalization of marks
论述了测量误差的严格控制：评分误差的控制，难度控制，信度与效度，单双音节的监控作用及分数等值。