主要成分

In the paper,the essential oil of Syringa oblate Lindl var affinis Lingelsh bud from Qinghai was extracted by the method of water vapor distillation.

采用水蒸气蒸馏法提取了产自青海的白丁香花蕾的挥发油，应用GC/MS方法对其化学成分进行了分析，分离出47个色谱峰，鉴定了26个化合物，占总峰面积的88.7%，主要成分是丁香酚、丁香醇、石竹烯、苯乙醇等化合物。

In the paper,the essential oil of Syringa oblate Lindl var affinis Lingelsh bud from Qinghai was extracted by the method of water vapor distillation. After detected by GC-MS,47 peaks were separated from the oil. Among them,26 compounds taken up 88.7% of total peak areas were identified.

采用水蒸气蒸馏法提取了产自青海的白丁香花蕾的挥发油，应用GC/MS方法对其化学成分进行了分析，分离出47个色谱峰，鉴定了26个化合物，占总峰面积的88.7%，主要成分是丁香酚、丁香醇、石竹烯、苯乙醇等化合物。

Garlic and garlic residues were studied based on the utilizable components and main components of both.

从大蒜及蒜渣的主要成分出发，对二者有用成分进行比较，论述了大蒜的开发利用及蒜渣综合利用的意义，阐述了蒜渣具有广泛开发利用前景

Objective To establish the quality standard of Alisma plantago-aquatica through comparing systematically the changes of HPLC fingerprint of 23-alisol B and 24-alisol A, and other corresponding components as well.

目的以川泽泻中主要成分23-乙酰泽泻醇B和24-乙酰泽泻醇A为指标成分，并通过HPLC指纹图谱比较，进行质量制定。

The second are tropical Asian distribution, total 118 genera (14.39%). 600 genera are tropical according to climate zone, which are 68.42% of angiospermae and absolutely dominant.

按气候带划分则有热带性分布600属，占种子植物属总数的68.42%，占有绝对优势；温带性分布只有220属，占25.08%，不是本区系的主要成分，但表现了温带成分向东江流域植物区系的入侵。

Result Under the pretreatment conditions, the content of acetone extractives transformed. The hydroxyl and carboxyl, belonging to auxochromic groups, were oxidized into the carbonyl and ester groups. Also, there were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain.

结果］刺槐在预处理条件下，丙酮抽出物成分发生了变化，羟基、羧基等助色基团在预处理条件下氧化成羰基、酯基等发色基团，且丙酮抽出物的主要成分中含有大量发色基团和助色基团。

Results:The experiments showed that 59 components were identified,accounting for 72.91 percent of the total essential oil.The essential oil was mainly composed of dehydrocostuslactone、costunolide、cedrenol、α-elemene、1,3-cyclooctadiene、eudesmol、α-selinene、β-caryophyllene、-longifolene、3,4-octadiene,7-methyl-etc.Among them Lactones like Dehydrocostuslactone and costunolide are essential components.

结果：GC-MS法分析鉴定了木香挥发油中59个成分，其主要成分为去氢木香内酯、木香烃内酯、雪松烯醇、α-榄香烯、环辛二烯、桉叶醇、α-芹子烯、丁子香烯、长松叶烯、7-甲基-3，4辛二烯等，占挥发油总量的72.91%；首次发现木香挥发油及去氢木香内酯、木香烃内酯具有抑制ADP诱导的血小板聚集活性。

The number of East Asian species accounts for 36.84% of the total number of the epiphyllous liverworts in Maoershan Nature Reserve.

猫儿山的叶附生苔类植物区系的主要成分为东亚成分（占36.84%，这反映了猫儿山的叶附生苔类植物区系具有显著的东亚特点。

Haloid water is the concentrated seawater, in which, the consistence of solubrlrty salt is 40-50 times of seawater, its main component is magnesium.

卤水是浓缩了的海水，其中可溶性无机盐浓度是海水的40～50倍，其主要成分是镁，以卤水为原料生产镁产品，不仅价格便宜，而且卤水含杂质少，成分均匀，易处理，容易制备高纯镁制品。

hexadecanoic acid,oleic acid and linoleic acid were the major constituents.

结论萝卜秦艽块根中挥发油的主要成分为烷烃类和有机酸及其酯类化合物，其中十六烷酸、油酸、亚油酸等成分含量较高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。