Correlations on the Residue Depletions of Oxytetracycline and Sulfadiazine in Urine and Edible Tissues of Swine 土霉素和磺胺嘧啶在猪尿液和可食性组织中残留相关性研究
Meteoric hydrothermal water-rock interreaction and magmatic degassing of open system have been both responsible for the~ ( 18) O and D depletions of miarolitic alkaline granite. 大气降水热液-岩石相互作用和岩浆开放体系去气作用是造成晶洞碱性花岗岩~(18)O和D贫化的重要原因。
On the primitive mantle normalized spider diagrams, Rb, Th and K LILEs are quite enrichment, but Nb, Sr, P and Ti obvious depletions. 在原始地幔标准化的多元素图解上所有这些岩石表现Rb、Th和K等大离子亲石元素强烈富集,Nb、Sr、P和Ti等元素明显亏损。
However the collection of the geography information data needs lots of manpower and material resources, repeated saving and managing data of various scale also means huge investments of economy and manpower depletions. 可是地理信息数据的采集需要巨大的人力物力的投入,各种比例尺数据的重复贮存与管理也意味着大量的经济上的投入和人力的消耗,而且也难以保证这些地理信息数据的一致性。
Secondly, we study the electron acceleration during magnetic reconnection. We analyze two magnetic island and thin current sheet, where density depletions are in the core region of the islands and intense currents therein. 然后,研究了磁场重联过程中电子加速:我们分析了在重联扩散区里两个磁岛和薄电流片的观测,在磁岛的核心区域存在密度耗空和很强的电流。