微波(光纤)通信电路传输继电保护信号,其传输时间不能超过:()
A: 1ms\n
B: 3ms\n
C: 5ms\n
D: 10ms
A: 1ms\n
B: 3ms\n
C: 5ms\n
D: 10ms
举一反三
- 微波(光纤)通信电路传输继电保护信号,其传输时间不能超过:() A: 1ms B: 3ms C: 5ms D: 10ms
- 写出下列各种情况的合理量子数。 (1)n = ,l = 2, m = 0, ms = +1/2 (2)n = 3,l = ,m = 1,ms = -1/2 (3)n = 4,l = 3,m = 0,ms = (4)n = 2,l = 0,m = ,ms = +1/2 (5)n = 1,l = ,m = 0 ,ms =
- 采样周期为5/3(ms)时,三点采样值乘积算法的时间窗为()。 A: 10/3ms B: 1(ms) C: 2(ms) D: 4(ms)
- 下列各组量子数中,合理的一组是( )。 A: n=3,l=4,m=+1,ms=+½ B: n=3,l=1,m=+1,ms=+½ C: n=3,l=0,m=+1,ms=+½ D: n=3,l=3,m=+1,ms=+½
- 下列各组量子数中,合理的一组是( ) A: n = 4, l = 2, ml = +3, ms = −1/2 B: n = 4, l = 5, ml = −1, ms = +1/2 C: n = 3, l = 1, ml = +1, ms = +1/2 D: n = 3, l = 3, ml = +1, ms = −1/2