查询词典 alstonine
- 与 alstonine 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Karrer and Enslin reported that the structure of alstyrine S_(19H_(22)N_2, a selenium- dehydrogenation-degradation product obtained by Sharp from the alkaloid alstonine, is identical with that of corynanthyrine,α-[2-(4, 5 diethylpyridyl)]-β-ethylindole, despite the fact that the melting points of these two substances have a 5°difference.
前者的紫外線吸收光譜與阿爾斯泰令(alstyrine，係一種由西阿斯木鹼經硒降解後的產物)的吸收光譜極為類似；且二者有一種相同的顏色反應。
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。
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有一个良好的政策环境，房地产，二级和三级市场的发展更加迅速改善。