分析吴有训在上世纪30年前后开展的X射线散射研究及这些研究的学术价值和背景，论证其与当时中国“学术独立”的关系，指出这些研究是......

Two compounds of dehydroabietylamine acetate 1 and dehydroabietylamine 2 have been studied.The X-ray study demonstrated ......