ZP·W1-18型无绝缘移频自动闭塞, 站内发送盒频率功出电压( )。[321010104]
A.(A)AC3.4V±0.4V
B.(B)DC3.4V±0.4V
C.(C)AC4.0V±0.8V
D.(D)DC4.0V±0.8V
正确答案是A
ZP·W1-18型无绝缘移频自动闭塞, 站内发送盒频率功出电压( )。[321010104]
A.(A)AC3.4V±0.4V
B.(B)DC3.4V±0.4V
C.(C)AC4.0V±0.8V
D.(D)DC4.0V±0.8V
正确答案是A