This paper introduces the principle of thermo acoustic refrigeration, analyses the factors affecting the performance of a thermo acoustic refrigerator, and presents the ways of optimization.
本文介绍了热声制冷的原理，分析了热声制冷机的性能影响因素，并提出了性能优化方法。
In support of such analysis, the XML-savvy enterprise architect can find inexpensive and flexible ways to gather basic information to support Systems Optimization.
为支持此类分析，懂xml的企业架构师可以找到廉价且灵活的方式来收集基本的信息，用于支持系统优化。
In this chapter I mainly discuss the basic concepts and ways of value chain analysis, optimization and evaluation.
本章主要讨论价值链分析、价值链优化和价值链评价的基本概念和方法。
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