针对此类性质金精矿，进行试验探索并取得了技术性突破。
In view of this kind of gold concentrate, the experimental exploration was conducted and the technical breakthrough was obtained.
通过试验研究了高性能养护剂对混凝土各项技术性能的影响，并分析了这种养护方法的技术经济性。
This paper discusses the influence of the high performance curing agent on technical properties, as well as the economical properties of concrete cured by the agent.
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