In our circumstance the envelope can be considered equivalent to the message header, while the address is the queue name.
在这种情况下，可以认为信封相当于消息头，而地址相当于队列名。
2
If a machine's hostname is the equivalent of a city block, the port number is an individual street address.
如果说机器的主机名相当于城市街区，端口号就相当于街道地址。
3
The new addressing scheme, defined in RFC2373 (see Resources), provides a colon-separated format, where 0:0:0:0:0:0:0:1 is the loopback addressequivalent to 127.0.0.1.