我们首先要看到治疗的效果，然后才是关心它的工作原理。

We want to get results first; then we'll worry about how.

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前言：目的：归纳总结现代医学中物理诊断和治疗的应用原理和应用内容。

Objective: sum up physical application principle and content of diagnoses and treatment of modern iatrology.

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并介绍治疗仪的结构设计、工作原理和性能测试。

The hardware structure, principle, performances of the instrument are presented.

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并介绍治疗仪的结构设计、工作原理和性能测试。

The hardware structure, principle, performances of the instrument are presented.

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