The difference between first-class energy efficiency and third-class energy efficiency
呀,出错误了!再试下吧。
暂时没有您的查询历史
不再显示查询历史
first class/grade; first degree; class A; one-level; one-stage; one-order
energy efficiency
distinguish; differentiate; discriminate; separate; make a distinction between; tell apart; difference; distinction; differentiation; discrimination