It is important to note that the injection
题型:单项选择题
问题:
It is important to note that the injection only takes place when the plunger is moving up the cam ().
A.base circle
B.slope
C.bottom point
D.top point
It is important to note that the injection only takes place when the plunger is moving up the cam ().
A.base circle
B.slope
C.bottom point
D.top point