主要成分

It was shown that the stable carbon isotope composition of beef tissue was primarily dependent on the diet the animals were fed,meanwhile theδ~(13)C values of cattle tail hair, defatted muscle and crude fat all enhanced with the increment of the proportions of C4 constituents in diet, but those values were on the contrary with the enhancement of the proportions of C3 constituents. Moreover, allδ~(13)C values of different tissues were significantly correlated with the content of C4 and C3 plant material. So, the main component of cattle feed could be investigated with the help ofδ~(13)C values. Theδ~(15)N values of beef tissues were affected by feed composition to some extent, but it had no regularity. The cattle tail hair and defatted muscle enriched in 13C to their feeds gave different results between the two groups, but cattle tail hair enriched in 15N much more than defatted muscle and in the proportion of 3‰- 5‰, plus, cattle variety and individual had effect on the proportion of enrichment.

结果表明，牛组织中碳同位素组成主要受饲料的影响，牛尾毛、脱脂肌肉、粗脂肪中的δ~(13)C值随着C4植物含量在牛饲料中的比例增加而升高，随着C3植物含量在牛饲料中的比例增大而降低，并且均与C4、C3植物含量呈极显著的相关性(P.01)，用牛组织中的δ~(13)C值可以调查牛饲料中的主要成分；牛组织中的氮同位素一定程度上受饲料因素的影响，但未随饲料组成成分的改变而呈现规律性变化；牛尾毛、脱脂肌肉相对饲料对13C的富集比例两组试验结果不一致，牛尾毛对15N的富集比例大于脱脂肌肉，富集比例约在3‰- 5‰，饲料种类、牛个体等因素对富集比例均有一定影响；牛尾毛、脱脂肌肉、粗脂肪中的δ~(13)C值三者之间相关性达到极显著水平(P.01)。

The main chemical components of Bulgaria are Citronellol、Trans-Geraniol、Nerol、Methyl eugenol、Linalool、β-Phenyl ethyl alcohol. The main chemical components of Xinjiang Province areβ-citronellol、trans-geraniol,β-phenyl ethyl alcoho, farnesol, geranellyl acetete, 7-octamoic acid ethyl ester.

保加利亚玫瑰油的主要成分为β-香茅醇、反式－香叶醇、橙花醇、芳樟醇、β-苯乙醇、甲基丁子香酚；新疆玫瑰油的主要成分为β-香茅醇、反式-香叶醇、β-苯乙醇、7-辛烯酸乙酯、乙酸香叶酯、金合欢醇。

By comparison, the general antimicrobial effect of Spiced powder essential oil is higher than that of Curry powder essential oil. The two kin...

以色谱 质谱联用法分析鉴定出五香粉和咖喱粉精油中主要成分，并分析比较了它们主要成分的差异与其抑菌活性大小之间的关系。

Different escharotic decide the different speed of reaction, thus to cause the great effect on stone carving speed, carving effect, for example, marble whose mainly component is carbonate, so it is better to choose escharotic made from HCI, while for granite , whose mainly component is silicate, it is better to choose escharotic made from HF

腐蚀剂类型的不同又决定了反应速度的差异，进而对雕刻速度、雕刻效果都会生产比较大的影响，例如，以碳酸盐为主要成分的大理石类石材，选择由HCl配制的腐蚀剂比较适宜；而以硅酸盐为主要成分的花岗石类石材，选择由HF配制的腐蚀剂比较适宜。

Chinese Cinnamaldehyde Cinnamaldehyde alias, Lauraceae plants are dry skin and cinnamon bark obtained by steam distillation of volatile oil in the main component of research in recent years are more root canal sterilization drug, it can seriously undermine the bacterial cell surface structure, and thus has a wider antibacterial spectrum and strong antibacterial activity; gallnut hundred, also known as worms, insect species are Schlechtendalia Schlechtendalia or times aphid eggs in their parasitic plants Anacardiaceae Rhus chinensis, Green bran Yang Yang, such as bran or red tree gall formation, the main ingredient for gallnut tannin, can solidification microbial protoplasts and a variety of body enzymes, a wide range of bacteria, fungi, yeasts are inhibited.

中药桂皮醛别名肉桂醛，是樟科植物肉桂的干皮及树皮经水蒸气蒸馏得到的挥发油中的主要成分，是近年来研究较多的根管消毒药物，它能够严重破坏细菌细胞表面结构，从而具有较广的抗菌谱和较强的抗菌活性；五倍子又名百虫，是倍蚜种昆虫角倍蚜或倍蛋蚜在其寄生漆树科植物盐肤木、青麸杨或红麸杨等树上形成的虫瘿，其主要成分为五倍子鞣质，能够凝固微生物体内的原生质及多种酶，对多种细菌、真菌、酵母菌都有明显的抑制作用。

Chinese Cinnamaldehyde which also named Cinnamaldehyde alias, is the main component of volatile oil which obtained by steam distillation from dry skin and cinnamon bark of lauraceae plants . It is researched as a root canal sterilization drug in recent years, it can seriously undermine the bacterial cell surface structure, and thus has a wider antibacterial spectrum and strong antibacterial activity; gallnut hundred, also known as worms, it is a kind of gall that be formatted by Schlechtendalia species of insects including Schlechtendalia and times aphid eggs in their parasitic plants Anacardiaceae Rhus chinensis, Green bran Yang or red bran Yang, the main ingredient for gallnut tannin, can solidification microbial protoplasts and a variety of body enzymes, a wide range of bacteria, fungi, yeasts are inhibited.

中药桂皮醛别名肉桂醛，是樟科植物肉桂的干皮及树皮经水蒸气蒸馏得到的挥发油中的主要成分，是近年来研究较多的根管消毒药物，它能够严重破坏细菌细胞表面结构，从而具有较广的抗菌谱和较强的抗菌活性；五倍子又名百虫，是倍蚜种昆虫角倍蚜或倍蛋蚜在其寄生漆树科植物盐肤木、青麸杨或红麸杨等树上形成的虫瘿，其主要成分为五倍子鞣质，能够凝固微生物体内的原生质及多种酶，对多种细菌、真菌、酵母菌都有明显的抑制作用。

The major volatiles of Sansa were E-3-Hexen-1-ol (14.74%), Formic acid and hexyl ester (9.52%) and they were all more than that in other varieties relatively. The major volatiles of Red Chief Delicious were 4-methyl-1, 3-pentadiene (16.37%) and Z-3-Hexen-1-ol, acetate (10.27%) and were also more than that in other varieties.

珊夏枝条挥发物主要成分（E-3-己烯－1-醇、甲酸己酯）的相对含量(14.74%，9.52%)均多于其他品种；首红枝条挥发物主要成分（4-甲基－1，3-戊二烯、乙酸叶醇酯）的相对含量(16.37%，10.27%)均多于其他品种。

Positive plate's active compound's main ingredient is two plumbic oxide, negative plate's active compound's main ingredient is sponge Pb.

正极板活性物质主要成分是二氧化铅，负极板活性物质主要成分是海绵铅。

And β-sitosterol is detected for the first time in studying of Tilia mongolica wood. By GC-MS techniques, it is ascertained that forty-five kinds of chemical components were in the leaves of Tilia mongolica and they accounted for over 80.35 percent of total volatile oil.

通过对蒙椴树叶成分利用气相色谱-质谱连用技术分析，确定出其中的45种化学成分，并通过标准峰面积法确定了它们的相对含量，已鉴定成分占总油状组分的80.35%，主要成分以脂肪酸、烷烃、醇类物质为主。

Andβ-sitosterol is detected for the first time in studying of Tilia mongolica wood.By GC-MS techniques,it is ascertained that forty-five kinds of chemical components were in the leaves of Tilia mongolica and they accounted for over 80.35percent of total volatil eoil.

通过对蒙椴树叶成分利用气相色谱-质谱连用技术分析，确定出其中的45种化学成分，并通过标准峰面积法确定了它们的相对含量，已鉴定成分占总油状组分的80.35%，主要成分以脂肪酸、烷烃、醇类物质为主。

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。