Normally, an application developer doesn't know which ports are available in the environment where the application is to be installed.
通常，应用程序开发人员不知道将在其中安装应用程序的环境中有哪些端口可用。
For servers, the system needs to know all of the application servers, their current status (started or stopped), and their communication ports (host and port number).
对于服务器，系统需要知道所有应用服务器、它们当前的状态(开始或停止)及其通信端口(主机和端口号)。
You know, Bridges, roads, high-voltage power lines, ports and airports, an upgraded Internet.
你知道，这包括桥梁，公路，高压电网，港口，飞机场以及互联网扩容等。
It is a tutorial for intermediate level users, you would need to know your way around the view ports, tools, the Attribute Manager and be comfortable with using Photoshop.
中间级用户的教程，您需要查看端口，属性管理器工具，自己了解和使用Photoshop的舒适。
It is a tutorial for intermediate level users, you would need to know your way around the view ports, tools, the Attribute Manager and be comfortable with using Photoshop.
中间级用户的教程，您需要查看端口，属性管理器工具，自己了解和使用Photoshop的舒适。
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