可适应——客户机和服务实现之间的链接是逻辑的(松散耦合)而非物理的(紧密耦合)。
Adaptable — the linkage between client and service implementation is logical (loosely coupled) rather than physical (tightly coupled).
曾几何时一切都可管理还是物理上可实现的。
There was once a time when everything that was manageable could also be physically touched.
每当物理学家们揭开大自然的一些新规律，这些知识就可用于制造各种装置，它们实现的功能让人叹为观止——例如，飞机可自由行走于天地间，广播可让千万人足不出户，遍知天下事。
When physicists puzzle out the workings of some new part of nature, that knowledge can be used to build devices that do amazing things — airplanes that fly, radios that reach millions of listeners.
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