描述：本文选用未喷施过稀土的茶叶为研究材料。试图研究稀土元素在植物体内的分布和定位，为探讨稀土对作物的增产机制提供重要的信息。|Tea not spraying rare earth was chosen as studied material.We attempt to study the distribution and location of rare earth elements (REEs) in plant and to provide important information for the i