Estimated life cycle的意思|示意

The concept and method of life cycle assessment are simply introduced and the environment performance of pavement concrete is systemically estimated with LCA.

简要介绍生命周期评价的概念和方法，应用生命周期评价方法评价道路水泥混凝土的环境性能。

The environmental impact of complex packages made of aluminum, polyethylene and paper board(Al-PE-Pa) and plastic packages were estimated using life cycle assessment(LCA) and compared.

采用生命周期评价法研究了牛奶纸塑铝复合包装的全生命周期环境影响，并与塑料包装的环境影响进行比较评价。