CAT扫描仪、核磁共振成像仪、激光外科手术工具，当然还有很多……它们都是基于物理学的基本原理。

CAT scanners, MRI imagers, laser surgical tools and much more — they're based on fundamental laws of physics.

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基于语义的方式，有两大基本原理，如这一标准所介绍。

The two fundamental principles of the semantics-based approach, introduced by the standard, are.

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Clutch提供的抽象，结合对CouchDB的REST基本原理的深刻理解，能促成一个可快速开发和可维护的基于CouchDB的应用程序。

The abstraction that Clutch provides, coupled with a solid understanding of the REST fundamentals of CouchDB, can lead to a rapidly developed and maintainable CouchDB-based application.

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