DDS (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies, programmability and so on.
直接数字频率合成(DDS)技术是目前广为应用的一项频率合成技术，它具有频率转换时间短、频率分辨率高、可编程等特点。
Combinatorial synthesis of carbohydrates is the newly formed technique to synthesize and biologically screen large set of oligosaccharides and glycomimetics in a very short time.
碳水化合物的组合合成是一项新兴技术，该技术可以在短时间内合成大量用于进行生物活性筛选的寡糖及拟糖物。
The synthesis was in mild condition, short reaction time, lower cost and the product was separated easily.
此合成工艺条件温和，反应时间较短，成本较低，产物易分离。
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