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- The development of xylem is of mesarch.Stomata are monocyclic type. 叶脉、叶柄、上胚轴的维管束均为外韧型。
- Monocyclic compounds yield is up to 95% as bicyclic comp... 当双环裂解率达70%25时,单环收率仍可达95%25。
- Conclusions The diterpene compound is a new compound. 结论此二萜类化合物为新化合物。
- Diterpene quinone of Salvia Linn. and their taxonomic significance. 鼠尾草属植物的二萜醌类化合物和它在分类上的意义.
- A New Diterpene Lactone from the Soft Coral Sarcophyton molle Tix. Dur. 柔软肉芝软珊瑚中的新二萜内酯。
- Microcystins are monocyclic heptapeptides produced by Microcystins aeruginosa. 微囊藻毒素（Microcystins，MC）是一类主要由Microcystins aeruginosa产生的单环七肽毒素。
- This toxin is a class of monocyclic heptapeptides with many different isomerides. 该毒素是一类具有多种异构体的环状多肽物质。
- Results One diterpene compound was isolated from the 95% of alcohol extract of the seeds of Caesalpinia minax Hance. 结果从喙荚云实的体积分数为95%25的乙醇回流提取物中分离鉴定了1个二萜类化合物。
- OBJECTIVE The extraction method of Tripterygium wilfordii and determination method of total diterpene in acetic ether extract were estabished. 本文讨论了雷公藤的提取方法及乙酸乙酯提取物总二萜含量测定方法。
- Microcystins, a common algal to xinineutrophicated freshwater body, is a group of monocyclic heptapeptides with many different isomerides. 摘要微囊藻毒素是富营养化淡水水体中最常见的藻类毒素，它是一类具有多种异构体的环状多肽物质。
- Fresh soap its components, trace alkaloids, inulin and plant-rich alcohol, as well as chamber and dandelion friedelin diterpene resin acids and other acids have been. 其成份食皂、微量生物碱、菊糖及植物富醇，还有木栓硐及蒲公英萜酸已酸脂等。
- Principal component regression(PCR) method is used to analyse monocyclic and polycyclic aromatic hydrocarbons in white oil.The computer program of PCR is based on VB language. 采用主成分回归紫外分光光度法分析白油中单环芳烃和多环芳烃的含量,运用计算机VB语言对实验数据进行回归分析。
- Principal component regression (PCR) method is used to analyse monocyclic and polycyclic aromatic hydrocarbons in white oil.The computer program of PCR is based on VB language. 摘要采用主成分回归紫外分光光度法分析白油中单环芳烃和多环芳烃的含量，运用计算机VB语言对实验数据进行回归分析。
- The paper deals with the study of monocyclic aromatic hydrocarbon (MAH) in shallow groundwater in three cities (C, W and S) in an area of the Yangtze River delta. 本文针对长江三角洲某地区3个城市(C市、W市、S市)浅层地下水的单环芳烃进行了研究。
- Taxol A diterpene originally isolated from the bark of the Pacific yew (Taxus brevifolia), that has proved an effective treatment for solid tumors, especially breast cancer. 紫杉醇：从太平洋紫杉木(Taxusbrevifolia)中最先分离出的双萜物质。被证明是有效的治疗实体瘤的药物，尤其是针对乳腺癌。
- Taxol, a complex polyoxygenated diterpene isolated from a rare plant of Taxus which has the extreme limit of medicinal sources, could not meet the clinical needs. 紫杉醇来源于珍稀的红豆杉属植物(Taxus)，药源极其有限，无法满足临床用药需要。
- Monocyclic aromatic hydrocarbons(MAHS) from the smoke of coal-fired house stoves were collected by multi-bed adsorbent tube,and determined by GC/MSD after thermodesorption. 利用多层吸附管采样和热脱附/色谱/质谱系统研究了家用炉灶燃煤过程单环芳烃释放情况。
- The authors also studied the route of photochemical reaction using bicyclo( tricyclo) diterpene derivatives as material and ambergris type materials were obtained with a16% total yield. 以二萜二环或三环衍生物为原料;通过光解、敏氧化获得龙涎香气香料;总得率约16%25.
- In accordance with the chronological characteristics of biomarkers of crude oil,the authors propose that the Jurassic crude oil and Upper Permian crude oil can be identified by Diterpene index. 根据原油中生物标记物的年代学特征 ;提出利用二萜烷指数将侏罗系的原油 (二萜烷指数 >0 8)与上二叠统的原油 (二萜烷指数 <0 5 )加以区别的方法。
- The molecular structure of Ia, which was deduced from the result of crystal structure analysis of Ib, shows that it is a novel diterpene containing chlorine with a 5,11-bicyclic carbon skeleton, the molecular formula C20H33O4Cl. 由Ib的晶体结构分析结果推断Ia的分子式为C_(20)H-(33)O_4Cl。 它是一个具有五、十一员双环碳骨架的新型含氯二萜。
