What is it called when it is possible to ignite the vapour above the oil?
A.Flash point
B.Boiling point
C.Ignition point
D.Pour point
正确答案是A
What is it called when it is possible to ignite the vapour above the oil?
A.Flash point
B.Boiling point
C.Ignition point
D.Pour point
正确答案是A