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In previous research, the accuracy and the speed of locating algorithm are constrained by each other.

在现有的研究当中，定位算法的准确度和算法的速度是相互制约的。

Copper content and accumulation in shoots of both two Elsholtzia species decreased with increasing Zn regardless of Cu supply. However, Zn concentration in E. splendens were increased by Cu supply at low or high Cu level, and in E. argyi Zn contents were also increased by Cu supply at 0.5 and 50μmol L〓.

研究结果表明，50μmolL〓的Cu有利于海州香薷根系的生长，但却明显抑制紫花香薷地上部分的干物质产量，Zn处理浓度直到200μmol L〓也未见两种香薷的干物质产量的下降。