求翻译：对外径≥150mm的可分离型圆锥滚子轴承，在包装前内、外组件之前应衬垫聚乙烯薄膜，或内、外组件分开单独包装。是什么意思？

External diameter of ≥ 150mm separable type tapered roller bearing, inside and outside in front of the packaging components before liner polyethylene film, or internal and external components separately packaged.