At first, this paper introduces the basic working principle and characteristics of DDS.

本文首先介绍了DDS的基本工作原理及特性。

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The purifying process, basic working principle and optional design parameters of the equipment are stated.

阐述了该方法的净化过程、基本作用原理和装置的最佳条件实验研究。

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The basic working principle and the crucial parameters of phase locked synthesizer are introduced in this paper.

介绍了锁相式频率合成器的工作原理以及频率合成器关键的性能指标。

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In principle, the tri-partite structure of three working groups encompassing basic science, adaptation and economics should produce a relatively coherent whole - more so, and with a more impressive imprimatur, than if each were assessed on its own, perhaps against the backdrop of turf wars.

BBC: Climate panel signs off reforms - but how ambitious?