The content of ephedrine hydrochloride was determined by HPLC.采用高效液相色谱方法测定盐酸麻黄碱的含量.Departments of public health must enhance control over prescribed ephedrine preparations.卫生部门要加强对麻黄素单方制剂的管理.No other units or individuals...
Silver azide does not dissolve in water or in nitric acid.叠氨化银不溶于水或硝酸.It is possible to harness the versatile chemical properties of cyanogen azide.氰化叠氮的灵活多变的化学性质是可控制的.Cupric azide is insoluble in water.叠氮化铜不溶于水....
These new extension project of the ancient library this noun and coruscate gives new vitality.这些新兴的扩展项目使图书馆这一古老的名词又焕发出新的活力.The clean and elegant color and structure coruscate the unique expressive force and permanent lif...