Properen普罗普朗
properadj.合适的;正当的;真正的
Properties of polarization偏振特性
proper reinforced concrete适筋混凝土
proper operating condition正常操作条件
proper point of inflection固有变曲点
properties of molding sand型砂性能
proper wheath for planting宜播气候
proper electrode placement电极准确安放