问题详情
单相全波整流式X线机的热量计算公式为
A.HU=0.707xkVpxmAxs
B.HU=1.30xkVpxmAxs
C.HU=1.414xkVpxmAxs
D.HU=1.732xkVpxmAxs
E.HU=kVpxmAxs