几种说法,楼主自己选择吧：
The hole is xxx degree deviated from the central line.
The hole is xxx degree off the central line.
Offset from the central line of the hole is xxx degree.
sorry啊,怪自己不仔细.疑问在此：
How many degree is the hole deviated from the central line?
How many degree is the hole off the central line?
How many degree is the offset from the central line of the hole?