【单选题】假定某服务的参考流是1000吨钢材,已知吨钢能耗750kgce,则每功能单位(Function Unit)在材料生产阶段的能耗是( )Assuming that the reference flow of a service is 1000 tons of steel and that the energy consumption of one ton of steel is 750 kgces,...
【判断题】Functional material,refers to low-tech materials used for non-structural purposes with excellent electrical, magnetic, optical, thermal, acoustic, mechanical, chemical and biological functions and mut...
【单选题】假定某服务的参考流是1000吨钢材,已知吨钢能耗750kgce,则每功能单位(Function Unit)在材料生产阶段的能耗是( )Assuming that the reference flow of a service is 1000 tons of steel and that the energy consumption of one ton of steel is 750 kgces,...