A.People can spray confine oxide on their car engines easily.B.The material works as a pollution filter.C.The material saves fuel for it reflects back the heat of burning fuel.D.When burnt, the material will save fuel.
A.People can spray confine oxide on their car engines easily.
B.The material works as a pollution filter.
C.The material saves fuel for it reflects back the heat of burning fuel.
D.When burnt, the material will save fuel.