Organic light-emitting materials contain organic small molecule materials, polymers, metal chelates and lanthanon chelates.

其中有机发光材料可分为有机小分子、聚合物分子、金属配合物和稀土配合物四类。

Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic.

通过对微量元素和稀土元素的研究，可以得出广汉粘土层的形成具有同源成分特征。

According to the analyse of petrochemistry, microelement, lanthanon and cause of formation type of rock body, sum up the all sequences are S-type granitoid .

经岩石化学特征、微量、稀土元素地球化学特征研究以及岩体成因类型图解判别，获得五个序列岩体均为S型花岗岩的认识；

Phyllostachys shoot grown from seed were sprayed by lanthanon multiple fertilization, naphthalin acetic acid, GGR and KH_2PO_4 with random group sample method.

采用随机区组设计方法，对毛竹实生幼苗喷施稀土多元复合肥、萘乙酸、GGR和复混磷酸二氢钾。

To evaluate the radiation level and radiation prevention effect in the environment and products after the reconstruction of production crafts in a lanthanon factory.

目的评价某稀土厂生产工艺技术改造后环境、产品放射性水平及放射防护控制效果。

The catalyst of the invention utilizes mgal composite oxide as a carrier, nickel and cobalt or noble metals as active constituents, and alkali metals and lanthanon as auxiliaries.

本发明催化剂以镁铝复合氧化物为载体，以镍和钴或贵金属为活性 组分，以碱金属和稀土元素作为助剂。