By definition, the guard terminal is nearly at the same potential as the high impedance terminal, so the guard terminal will be at the same potential as the magnitude of the voltage source.
2
头尾两端的鸭子有助于保护群体的安全。
The ducks at both ends help to keep the group safe.
3
本文讲述了如何只是保护用户 ID 和密码,而不保护客户端和服务器间交换的其他信息。
This article shows you how to protect only user IDs and passwords, and not other information exchanged between client and server.