查询词典 co-operatives

Keywords can be considered as a set of words which are important and subject correlated cohesively in a document. Therefore, an automatic keyword extraction method based on density clustering is proposed in this paper. Web pages are segmented, and the words are clustered based on their co-occurrence. Co-occurrence relations between words are analyzed, and keywords that capture the main topics of the document are extracted.

由于关键词是文章中较重要且主题关联较凝聚的词的集合，因此提出一种基于密度聚类模式的中文新闻网页关键词提取方法，根据词语之间的共现信息，对网页分词后的词语进行聚类，在分析词语关联度的基础上提取出反映新闻主题的关键词。

Zhejiang Zhongshang Motorcar Co., Ltd, established in September, 2007, is a special car production enterprise. It bought Quzhou Huaxia Motorcar Co., Ltd successfully, and then became a completer special car production and distribution enterprise.

专用车生产企业浙江中商汽车有限公司创办于2007年9月，成功地收购了衢州华夏汽车有限公司，成为一个完整的专用汽车生产、销售企业。

It was demonstrated that when 0.10molL〓HCl was used as internal electrolyte, higher sensitivity and lower detection limit were obtained, and other copresent gases, such as CO, NO, NH〓 and CO〓, hardly had effect on responses of SO〓.

结果表明，以0.10molL〓HCl作为内充电解液，将此气体传感器用于测定二氧化硫，得到的检测限较低，且CO，NO，NH〓和CO〓等共存气体对二氧化硫的测定几乎没有影响。

Three isomorphic pendant derivatives based on monovacant Keggin heteropolytungstate [SiW11O39]8- as building block have been synthesized through the decoration of Co-Im complexes using bench method:5Na_4H_2[SiW_(11)O_(39)CoIm]_(0.63)[SiW_(11)O_(39)Co(H_2O)]_(0.37)·7H_2O (1)_6[SiW_(11)O_(39)NiIm]_(0.8)[SiW_(11)O_(39)Ni(H_2O)]_(0.2)·7H_2O (2)_4Na_6[SiW_(11)O_(39)MnIm]_(0.69)[SiW_(11)O_(39)Mn(H_2O)]_(0.31)·7.5H_2O (3) Complexes 1–3 are the first examples of crystallographically characterized 3d-transition metal mono-substituted POMs with an antenna organic ligand synthesized under normal bench conditions.

以单缺位Keggin型杂多钨硅酸盐[SiW11O39]8-为建筑单元，在水溶液中通过过渡金属-咪唑配合物的修饰，成功地获得了三个同构的悬臂式衍生物：5Na_4H_2[SiW_(11)O_(39)CoIm]_(0.63)[SiW_(11)O_(39)Co(H_2O)]_(0.37)·7H_2O (1)_6[SiW_(11)O_(39)NiIm]_(0.8)[SiW_(11)O_(39)Ni(H_2O)]_(0.2)·7H_2O (2)_4Na_6[SiW_(11)O_(39)MnIm]_(0.69)[SiW_(11)O_(39)Mn(H_2O)]_(0.31)·7.5H_2O (3)它们是第一例在常规水溶液条件下合成得到的X-射线表征的3d-过渡金属取代的悬臂式多酸衍生物。

Beijing cultural industry gifted Chuangjia Ltd. Beijing Youchuang Jiaye cultual co., Ltd excellent success Co., Ltd. is a committed to the promotion of international road information and technological exchanges and to promote the professional trade services.

北京优创佳业文化有限公司Beijing Youchuang Jiaye cultual co。，ltd 优创佳业有限公司是一家致力于促进国际道路信息技术交流与推广的专业贸易服务机构。

Panax ginseng and Daucus carota plant tissues were co-cultured by suspension way, and the best medium for suspension co-culture was screened in this study.

本实验对人参和胡萝卜两种植物组织进行悬浮混合培养，筛选出悬浮混合培养的最佳培养基。

Huar International Deploitation Co., Ltd. of Hong Kong Limited formal registration, it is Shenzhen Huar Metal Products Co., Ltd. in Hong Kong head office, set up its Hong Kong and the mainland as a bridge between .

华尔国际实业有限公司是香港正规注册的有限公司，为深圳市华尔金属制品有限公司在香港的总公司，架起香港与内地之间的桥梁。

After the click reaction of the SCL micelles and azide-terminus PNIPAM homopolymer, the novel PNIPAM-functionalized SCL micelles with pH-responsive cores and outer thermosensitive coronas were prepared, which was investigated act as excellent candidate of nanosized drug delivery vehicles. Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

另外，还可以使用溴丙炔对ATRP聚合出的PMEO_2MA-b-PDMA-b-PDEA三嵌段的中间PDMA嵌段进行部分季胺化，这样可以利用两端叠氮化的四甘醇来交联由PMEO_2MA-b-PDMA-b-PDEA在不同条件下形成的两种分别以PMEO_2MA或PDEA为核的胶束，从而实现了从同一个聚合物直接在水溶液中得到两种内核不同敏感的壳交联胶束。

Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

来源：1212A21BC论文网www.abclunwen.com

It's found that the aromatic dinitro compounds can be monoreduced to nitroanilines in high selectivity, aromatic nitro compounds and muti-cycle aromatic nitro compounds can be quantitively reduced to the corresponding amine by selenium catalyst with CO/H2O in polar aprotic solvents under atmospheric pressure using medical inorganic bases as co-catalysts.

在实验的基础上提出了对硒催化CO/H_2O还原芳香硝基化合物机理的一些粗浅认识。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。