alcoholate造句

例句与造句

1. A further advantage of this method of working is that the sodium alcoholate can very conveniently be made by mixing the sodium with a proportion of the hydrocarbon which is to be used as the solvent for the reaction and adding the required amount of the alcohol thereto
   另外这种方法还有一个优点：纳和一定比例的碳氢化合物混合在加入所需数量的乙醇可以方便制备乙醇纳，而碳氢化合物可以作为溶剂使用。
2. The gel by sodium alcoholate method , added benzoylacetone , have the obvious uv absorption peaks at 265nm and 337nm respectively . when the gel was placed in air , the chelate did n ' t have change . the absorption peak decreased until disappeared when the films were irradiated by the ultraviolet light with the relevant wavelength , which indicated that the films were obviously photosensitive
   ( 4 )通过三种方法制备感光性的sno _ 2 ： sb ( ato )溶胶，采用醇钠法，添加苯酰丙酮制备的二氧化锡凝胶膜，在265nm和337nm处存在明显吸收峰，空气中放置，所形成的螯合物不发生变化，用相应波长的紫外光照射时，这个吸收峰会减小直至消失，表明薄膜具有良好的感光性。
3. It's difficult to find alcoholate in a sentence. 用alcoholate造句挺难的