optically perfect reflector是什么意思

用法例句

Based on the ideal point and negative ideal point,the mathmatic model of the economic benefit evaluation in mine enterprices is proposed in the paper.

运用ＡＨＰ方法对矿山企业的各项技术、经济指标作定性定量分析，结合评价因素的理想点与反理想点，提出了矿山企业经济效益评价的数学模