Some characteristics of vegetative organs of Yucca gloriosa are relative to drought resistance.凤尾兰营养器官某些特征与抗旱性有关.Anatomical structure of Yucca gloriosa was observed with the optical microscope by paraffin method.利用石蜡切片,在...
生命体通过某种生物过程聚集矿物质。The living organisms somehow concentrated the minerals by biological processes.液体中的原子与形成颗粒的矿物质相互作用。Atoms within the fluid interact with the minerals that form the grains.总体来说，矿物质远远不如其他营养成分好吸收。Minerals in...
Objective: Discussion of the clinical value percutaneous endoscopic gastrostomy ( PEG ).目的: 探讨经皮内镜下胃造瘘术 ( PEG ) 的临床应用价值.Objective To discuss the clinical value of percutaneous endoscopic gastrostomy ( PEG ).目的探讨经皮内镜胃造瘘术 ...