A.knocking of a fuel at a particular pressure
B.knocking of a fuel at a particular temperature
C.knocking of a fuel in a particular engine
D.knocking of a fuel under specified conditions in a standard engine
A.knocking of a fuel at a particular pressure
B.knocking of a fuel at a particular temperature
C.knocking of a fuel in a particular engine
D.knocking of a fuel under specified conditions in a standard engine