composite insulating material造句

At the end of 2014, ATR had received 1000 orders for the type and delivered 754, leaving a backlog of aircraft . Since 2008, ATR has been a participant in the European Clean Sky Joint Technology Initiative and on 8 July 2015 a green ATR 72-600 flying technology demonstrator made its first flight; it is to be used to trial new composite insulating materials, electrical distribution system and energy dispersal modifications, and air conditioning systems to evaluate their effect on overall efficiency.
It's difficult to find composite insulating material in a sentence. 用composite insulating material造句挺难的