Beginners and intermediate system administrators will benefit most from this article; the explanations and examples assume you can handle most beginner-level system admin concepts.

初学者和中级系统管理员将从本文获益最多；解说和示例假设您可以运用大部分初学者级别的系统管理概念。

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The network layer, however, provides a hop-by-hop protocol and is used on the two end systems and every intermediate system.

但是网络层提供跳跃点到跳跃点的协议，所有端系统和中间系统都需要使用。

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But such a state of general unemployment is something rather exceptional, and it is by no means evident that a policy which will be beneficial in such a state will also always and necessarily be so in the kind of intermediate position in which an economic system finds itself most of the time, when significant unemployment is confined to certain industries, occupations, or localities.

FORBES: Hayek: "General Unemployment" Requires Easy Money

In a report published by The Jerusalem Center for Public Affairs, Rubin, who has been awarded the Israel Defense Prize and oversaw the development of Israel's Arrow missile defense system, concludes that Iran today has the capacity to develop solid-fuel-based intermediate ballistic missiles with a range of 3, 600 kilometers.

CENTERFORSECURITYPOLICY: Time's up on Iran