测量法兰上A和B点之间的距离( )
A.Compare the width on the flange between points A and B B.Measure the distance on the flange at points A and B C.Test the length of points A and B on the flange.正确答案B
测量法兰上A和B点之间的距离( )
A.Compare the width on the flange between points A and B B.Measure the distance on the flange at points A and B C.Test the length of points A and B on the flange.正确答案B