logical tab的用法和样例：
例句
- This flexing generates a negative potential at the feedback tab, which feeds back to the base of the transistor.
这个弯曲在反应标记上产生负电压，其反过来为晶体管的基极供电。 - Unnoticed chats went ignored with nary a flash, blink, or beep until we came back to the window or tab containing the chat room.
我们希望它可以增加时间标记，以及消息或提示等功能。
