According to the principle of four stroke
题型:单项选择题
问题:
According to the principle of four stroke diesel engine, what is the number of its efficient work stroke per revolution?()
A.1/2
B.1
C.2
D.3
According to the principle of four stroke diesel engine, what is the number of its efficient work stroke per revolution?()
A.1/2
B.1
C.2
D.3