環多烯烴 的英文怎麼說
中文拼音 [huánduōxītīng]
環多烯烴
英文
cyclopolyolefine-
A wide variety of natural products, e. g. alkaloids, - lactames, biotin, amino sugars has been synthesized by 1, 3 - dipolar cycloaddition reaction between nitrones and alkenes
通過硝酮與烯烴化合物的1 ， 3 -偶極環加成反應合成了許多天然?物，如生物鹼、 -內酰胺、生物素、氨基糖等。Abstract : a wide variety of natural products, e. g. alkaloids, - lactames, biotin, amino sugars has been synthesized by 1, 3 - dipolar cycloaddition reaction between nitrones and alkenes
文摘:通過硝酮與烯烴化合物的1 ， 3 -偶極環加成反應合成了許多天然產物，如生物堿、 -內酰胺、生物素、氨基糖等。Methods of test for petroleum and its products - determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions - dimethyl sulphoxide extraction refractive index method
石油和石油產品試驗方法.第102部分:未用的潤滑基油和不含瀝青烯的石油餾分物中多環芳香族環烴的測定.二甲硫析取物折射指數法This review summarizes recent developments for the epoxidation of olefins with hydrogen peroxide catalyzed by polyoxometalates, and points out the developmental way of this kind of catalyst in the future
文章綜述了以雜多酸為催化劑，過氧化氫為氧化劑的烯烴環氧化反應研究進展，指出了今後此類環氧化反應催化劑發展方向。Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines
煙草的很多成分都會引起有機體突變以及致癌，如烯烴化合物，亞硝胺，多核芳香烴以及多環碳氫化合物和銨During 2003, the department embarked on risk assessment projects on acrylamide in food, dietary exposure to mercury of secondary school students salmonella in egg and egg products, polycyclic aromatic hydrocarbons in barbecued meat, patulin in apple juices and 3 - monochloropropane - 1, 2 - diol in savoury products other than soy sauce. the last two projects were conducted in collaboration with the consumer council
年內，本署進行的風險評估研究有： 「食物的丙烯胺含量」 「中學生從食物攝取到汞的情況」 「蛋及蛋製品內的沙門氏菌」 「烤肉內的多環芳香烴」 「蘋果汁含黴菌毒素」及「調味醬料不包括豉油的氯丙二醇含量」 。分享友人