栅门
1.You slip it into the slot at the turnstile and then push the turnstile to get in .
2.You put in the slot at the turnstile and then push the turnstile to get into the platform.
5.You put it in the slot at the turnstile and then push the turnstile to get into the platform.
6.This power must be supplied by the power supply for each gate in the circuit.
8.Yes, we have. We require that people leaving the library pass through a turnstile at which two guards are stationed.
9.The amount of current supplied from the output of a gate is limited. Therefore the output of a gate can only be connected to a limited number of inputs.
10.2. Propagation-delay: When the binary input changes value there is a delay due to the time it takes the signal to propagate from the input of the gate to the output of the gate.
