There will always be tensions between principle and expediency.原则和权宜之计之间总是矛盾重重.These political tensions explain the reluctance of financiers to invest in the region.政局的紧张使金融家不愿意在该地区投资。The causes are a complex blend of lo...
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....