Foundrymen have maken a lot of research works to shrinkage and dispersed shrinkage, and gained important success during the past few years.
多年来，铸造科技工作者对缩孔和缩松进行了大量研究工作并取得重要成果。
Their purpose is to improve its safety and efficiency. Because of using cryptology, we have maken progress in theoretical research and application.
由于密码技术的采用，电子选举协议在理论研究及实际应用方面都取得了一些成果；
The scientists of china have already maken obvious progresses in earthquake prediction.
地震预报工作在我国已取得了明显的进展。
The scientists of china have already maken obvious progresses in earthquake prediction.
地震预报工作在我国已取得了明显的进展。
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