stack extension造句

All of the locomotives otherwise had a Santa Fe-style telescoping stack extension fitted, which elongated the stack to clear smoke better and could be lowered to pass under low bridges and tunnels.
In 2012, Mr . Milstein and his wife, Abby, committed to donate $ 8 million to the New York Public Library so it can move forward with a project to develop the lower level of the Bryant Park Stack Extension ( BPSE ), two floors of storage space underneath Bryant Park.
It's difficult to find stack extension in a sentence. 用stack extension造句挺难的