After analyzing the automatic fingerprint recognition based on structural features, we improved it and put forward a step by step structural matching method. The recognition is grouped two step.
分析了基于结构匹配的指纹自动识别方法，并对其作出了改进，提出了一种分阶段的结构匹配识别方法，把识别分为两步进行。
The rates of survival and usability of vitrified by straw method and two-step thawing method could be improved significantly.
用细管法玻璃化冷冻和两步解冻法可显著提高体外受精胚胎的存活和生长。
To implement a fast slice fingerprint image synthesis, an improved method of pre-operation and two-step correlation is adopted to further accelerate the synthesis speed.
为实现快速的条形指纹图像拼接，在两步相关方法的基础上，改进预处理和块相关操作，进一步加快条形指纹图像拼接速度。
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