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Baseline separation of eight kinds of LCFAs (dodecanoic acid, tetradecanoic acid, palmitic acid, oleic acid, stearic acid, eicosanic acid, erudcic acid, behenic acid) was achieved within 2 min with high resolution performance.

建立了利用短的微径色谱柱直接测定食用油中未衍生化长链脂肪酸的快速气相色谱方法。C12~C22脂肪酸在2 min之内实现基线分离，定量标准曲线的相关系数大于0.988，最低检测限（S/N=3）为2.80~9.60 mg/L，回收率为

Octadecanoic acid、tetradecanoic acid、hexadecanoic acid、eicosanoic acid、9-octadecenoic acid、9,12,15-Octadecatrienoic acid、5,8,11,14-Eicosatetraenoic acid and 9,12-Octadecadienoic acid were increased dramatically in NASH group (P.05). Moreover,ω-6/ω-3 polyunsaturated fatty acids ratio is raised.

1脂肪酸分析结果提示NASH肝组织中正十二烷酸含量显著降低(P.05)，硬脂酸、十四烷酸、十六烷酸、二十烷酸、油酸、α-亚麻酸、花生四烯酸和亚油酸含量显著升高(P.05)，ω-6：ω-3多不饱和脂肪酸的比值升高。

Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acid and alkali UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acid and acetic acid), ammonia, amine and various alkali and salty solutions. Both materials cant resist the corrosion of strong oxidable acid.

在常温下，PVF2对卤素、卤代烃、强氧化剂、沸酸、碱等多种有机溶剂都有良好耐蚀性；UHMWPE对非氧化性酸(稀硫酸、硝酸及浓度较大的盐酸、磷酸、氢氟酸、甲酸、乙酸)、氨和胺及各种碱、盐溶液都有良好的耐蚀性，两种材料都不耐强氧化性酸的腐蚀。

The nutritional composition of six kinds of seed which belong to Labiatae plants have been studied,the results showed:the contents of fatty oil in the seeds was abundant and the contents of unsaturated fatty acid were rich,its unsaturated fatty acid in these kinds of seed oil reached 90% all.the main constituents of fatty acids were:α-Linoleni acid,linolic acid,oleic acid,arachidonic acid palmitic acid and stearic acid.

对六种唇形科植物种子营养成分研究的结果表明：种子含有丰富的脂肪油，其不饱和脂肪酸总量均在 90 %以上。种子油的主要成分为：α亚麻酸、亚油酸、油酸、花生烯酸、棕榈酸和硬脂酸等成分。

Components of fatty acid in tea seed oil are oleic acid , linoleic acid, palmitic acid, stearic acid, linseed oil acid, myristic acid and so on while linoleic acid and linseed oil acid are necessary to maintain growing of human beings' skin and hair and they can also prevent arteriosclerosis.

茶叶籽油的脂肪酸成分为油酸、亚油酸、棕榈酸、硬脂酸、亚麻油酸、豆蔻酸等，而亚油酸、亚麻油酸是维持人体皮肤、毛发的生长所不可缺少的，能够预防动脉硬化。

And seven kinds of known fatty acid components were determined, including myristic acid C(subscript 14:0), palmitoleic acid C(subscript 16:1), palmitic acid C(subscript 16:0), linoleic acid C(subscript 18:2), oleic acid C(subscript 18:1), stearic acid C(subscript 18:0), and arachidic acid C(subscript 20:0). The content of linoleic acid in FTY-5 was 9.67%, which was much more than 0.67% in common yeast.

从FTY-5和普通酵母细胞的脂肪中检出了7个已知组分：肉豆蔻酸C(下标 14：0)，棕榈油酸C(下标 16：1)，棕榈酸C(下标 16：0)，亚油酸C(下标 18：2)，油酸C(下标 18：1)，硬脂酸C(下标 18：0)和花生酸C(下标 20：0)，FTY-5中亚油酸的含量较高，其含量为9.67%，高于普通酵母0.67%。

The results showed that the irradiation treatment in the dose of 2.0-8.0kGy is not significantly effective to the contents of total sugar, crude protein and crude fat in walnut powder. The content of crude fiber in irradiated walnut powder increased, but not significantly. The irradiation had barely change on the contents of the lauric acid and myristic acid, and non-significant effects on the contents of palmitic acid, palmitoleic acid, stearic acid, leinoleic acid, arachidic acid and linolenic Acid. However, the irradiation contributed to significant increase in the content of oleic acid with the irradiation dose. When irradiation dose reached 8.0kGy, the content of oleic acid had an increase of 4.3%. Irradiation will not change the sensory index of walnut powder much when irradiation dose is lower than 8.0kGy.

结果表明：剂量为2.0～8.0kGy时，辐照对核桃粉中的总糖、粗蛋白和粗脂肪含量无显著影响；辐照后的粗纤维含量有一定的增加，但不显著；辐照对核桃粉中的月桂酸和肉豆蔻酸含量基本没有影响，对棕榈酸、棕榈油酸、硬脂酸、亚油酸、花生酸和亚麻酸含量有一定的影响，但不显著；辐照后核桃粉中的油酸含量随辐照剂量的上升而显著增加，剂量达到8.0kGy时，油酸含量增加了4.3%。8.0kGy以下辐照对核桃粉色泽、气味、口感无明显改变。

The main organic acid was citric acid, followed by malic acid. Citric acid and tartaric acid levels increased during storage. Malic acid and quinic acid increased from stage one to stage two. Shikimic acid level increased from stage one to stage three, then decreased slightly. Acetic acid changed unremarkably. Succinic acid changed not significantly from stage one to stage two, then increased and it was the highest in the stage three. The level in stage four and stage five was lower than the level in stage three.

五九香梨果实中的主要有机酸是苹果酸和柠檬酸，整个贮藏期间，柠檬酸和酒石酸含量处于上升趋势，苹果酸和奎宁酸含量在第一、二月贮藏期间增加，而后开始下降；莽草酸含量在贮藏期第一到第三阶段上升，而后略下降；琥珀酸含量在第一到第二阶段变化不明显，接着有上升的趋势，在第三阶段含量达到最高，第四和第五阶段略低于第三阶段；乙酸含量变化不明显。

Miao also拌炒 mix and stir-fey acid acid fish pepper, eggplant acid, acid Zizania head, sour cucumber, tomato acid, acid spring buds, fern acid, acid green onions and corn acid, acid such as glutinous rice sauerkraut consumption, and a variety of different flavor.

苗家酸鱼还可拌炒酸辣椒、酸茄子、酸茭头、酸黄瓜、酸番茄、酸春芽、酸蕨、酸葱以及包谷酸、糯米酸等各种酸菜食用，又有各种不同的味道。

Result 5 compounds in Hickory nut oil were identified, and they were linoleic acid, oleic acid, linolenic acid, palmitic acid and stearic acid, and their contents were 63.48%, 19.90%, 11.96%, 3.31% and 1.35% resp. The fatty acid ratio of n-6 to n-3 was 5.31, which was close to that of recommended by China (4-5):1. The ratio of saturated fatty acid, monounsaturated fatty acidand polyunsaturated fatty acids in Hickory nut oil was 1:4.3:16, the content of polyunsaturated fatty acids was slightly higher, but it mainly contained linoleic acid and a-linoleic acid, which were inevitable fatty acid to human body.

结果］共鉴定出山核桃仁油中的5中化合物，即亚油酸、油酸、亚麻酸、棕榈酸和硬脂酸，其含量分别为63.48%、19.90%、11.96%、3.31%和1.35%；山核桃仁油中n-6： n-3脂肪酸比例为5.31，与我国推荐的n-6：n-3脂肪酸比例(4~5)：1非常接近；山核桃仁油中饱和脂肪酸：单不饱和脂肪酸：多不饱和脂肪酸为1：4.3：16，多不饱和脂肪酸含量偏高，但多不饱和脂肪酸主要包括亚油酸和a-亚麻酸，均为人体必须脂肪酸。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐