potassium
英[pə'tæsjəm]美[pə'tæsjəm]
n.[U] 钾
形容词：potas'sic
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- potassium ferrate;preparation;water treatment agent.
高铁酸钾，制备工艺，水处理药剂。收藏 - In this paper,a review of the preparation methods and characteristics of potassium ferrate, and its applications in water treatment is presented.
作者综述了有关高铁酸钾的制备方法、性质及应用领域的研究进展。收藏 - Preparation of potassium ferrate and its applications in water treatment.
多功能水处理剂高铁酸钾的制备与应用。收藏 - The plant of growth needs three kinds of elements : nitrogen , phosphor and potassium.
生长着的植物需要三种元素:氮、磷、钾。收藏 - A field trial was carried out in Datonghu Administration District of Jianghan Plain to study the response of Echinochloa fru mentacea growth, yield and profit to phosphate application rates and nitrogen( N), phosphate( P), potassium( K) combined fertilization.
在江汉平原田间条件下研究了磷肥用量及氮、、肥单施和配合施用对小米草生长及产量的影响。 收藏
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