紫色片状结晶或结晶性粉末。熔点147～149℃。旋光度 +138(苯)。不溶于水，溶于乙醇、有机溶剂和植物油。存在于紫草科植物紫草( Lithosperraum erythrorhizon S...

一、材料 菌株、滤纸、培养皿（灭菌）、镊子、菌种保存管（灭菌）、（滤纸）打孔器 二、方法步骤 1.圆形滤纸片的制备 用（滤纸）打孔器将滤纸制备成...

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ITER Industry ITER will be the worlds largest experimental fusion facility and is designed to demonstrate the scientific and technological feasibility of fusion power for energy purposes. Fusion is th...

http://www.scopus.com/ An eye on global research. 50 million records | 21,000 titles | 5,000 publishers Scopus, the largest abstract and citation database of peer-reviewed literature, features smart t...

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