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The chloroform phase was isolated into 7 phases by column chromatograpathy, and the bioassy showed that the 1 phase has strong inhibitory effect, was 91.01% on Abutilon theophrasti M., root length, 51.35%、63.93%on Echinochloa crusgalli L, seedling length and root length, and the Amaranthus retroflexux L.,germination rate is 0, the secondly was 2 phase and 5 phas, and next we continued iaolated these two phases.

用硅胶柱对氯仿组分进行分离得到7个组分，生物测定表明组分1化感作用最强，对苘麻根长抑制率为91.01%，对稗草芽长和根长的抑制率分别为51.35%、63.93%，反枝苋的发芽率为0；其次是组分2和组分5，由于组分2的含量相对较少，对组分1和组分5继续分离。

It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.

运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离，结果表明，白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解，依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取，生物测定表明氯仿组分对杂草的抑制作用最强，对苘麻芽长和根长抑制率分别为44.32%、88.08%，对稗草芽长和根长的抑制率分别为82.08%、92.16%，反枝苋的发芽率为0；其次是乙酸乙酯相。

Some of my acclaimed work was written at an isolated island hotel off the coast of China.

我有几本受赞赏的小说就是在中国海岸边一个孤岛上的酒店里创作出来的。

Some of my acclaimed work were written at an isolated isearth hotel off the coast of China.

我有几本受赞赏的小说根本那是在中国Chinachina海岸边唯一孤岛上的酒店里创作出来的。

A flight barely long enough to buckle our boots and adjust our various dangling accouterments brought us to an isolated knoll high above the reservoir.

阿航勉强足够长的时间扣靴子和调整我们的各种悬挂休闲类服装将我们带到一个小圆丘以上的水库高。

Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11,which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl)acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications.

从云南土壤真菌07-11号菌株的发酵液乙酸乙酯萃取物中分离得到2个化合物，通过理化鉴别和光谱测定，鉴定两化合物分别为N-(4-羟基-2-甲氧苯基)乙酰胺(1)和麦角甾7，22-二烯-3，6-二酮(2)。

Results: An acetophenone derivatives was isolated and identified as 2,4-dihydroxy-f-methoxy-3-methylacetophenone with a concentration〉98oA.

结果：鉴定该化合物为2，4-二羟基-6-甲氧基-3-甲基-1-苯乙酮，纯度〉98%，用于狼毒制剂结核灵片的质量控制。

In this study, 252 acidophilic actinomycetes were isolated from 10 acidic soil samples collected in Jiangxi Province, Yunnan Province and Beijing with dispersion and differential centrifugation approach.

实验中，从江西、云南、北京采集的10份酸性土样，采用分散和差速离心法和常规分离方法分离出嗜酸放线菌252株。

Isolated structures such as the whorl of cells in the center, are specifically acidophilic.

胸腺小体则嗜酸性。

Marine Actinomycete Ⅰ10 was isolated and collected from seawater of Bohai.

Ⅰ10菌株是从渤海海水中分离得到的1株放线菌。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。