Abstract As there are some interrelations and interactions between indexes in the contamination level evaluation of industrial wasted oil,it is difficult to evaluate directly.

• 摘要在工业废油污染程度综合评价研究中，各类复杂油质和众多影响因素相互作用，各个理化指标间相互联系、相互干扰，因而在评价中存在一些模糊的概念和表象。