确定了镜场中第一排定日镜相对于接收塔的最佳距离。
The distance between the tower and the first row heliostats in tower SPPs is deduced.
其原理是根据眼睛的位置及大小确定嘴部的相对位置。
The principle is to locate mouth region according to eye's size and position.
通过对比,确定了酸碱沉淀法提取DCA13,并用滴定法测定DCA13的分析方法,其相对误差小于1.5%。
Titration analysis method was set up for DCA13; the error was less than 1.5%.
从实验结果看,测定值的相对标准偏差小于0 7%,相对不确定度小于0 5%。
Under experiment condition, RSD is less than 0.7%, reference uncertainty is less than 0.5%.
检查两个项目,以确定它们的相对大小;
检查两个项目,以确定它们的相对大小;
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