物质

Results The structures of the aloe leaves were basically similar as characterized by the presence of the large, well developed parenchymatous cells in the phloem pole where anthraquinones were stored. Some positive correlations exist between the contents of anthroquinones in the leaves of different species and different parts of leaves of the same species, and some phytotomic factors including the density of vascular bundles, the ratio of large parenchymatous cells in phloem and the thickness of the chlorenchyma.

结果 芦荟属植物叶的基本结构类似，维管束韧皮部内具大型薄壁细胞为该属的结构特征，是蒽醌类物质的主要贮存场所；不同种植物叶内及同种植物叶的不同部分中蒽醌类物质的含量不同与维管束分布密度、大型薄壁细胞所占比率及同化组织厚度成正相关。

Research to monitor the worldwide amount of chlorofluorocarbon chemicals, or CFCs, which eat away at the protective ozone layer when released into the atmosphere, suggests that more of the chemicals are out there than expected.

目前人们正在开展一项研究，目的是监视全球的含氯氟烃数量，这种化学物质在被释放到大气中之后就会侵蚀起保护作用的臭氧层。该研究表明：大气中的这种化学物质比预期的更多。

The GEMC technique has been used to study the VLE of hydrofluorocarbons and hydrochlorofluorocarbons , which are considered as good candidates for replacing chlorofluorocarbons .

利用Gibbs系综方法模拟氯氟烃替代物质汽液平衡方面的研究工作，提出了两种方法来描述这类物质的分子相互作用。

Using fresh chlorophyll distilled from fresh leaves of yulan as experimental material,this research analyses the change of the absorption spectra of chlorophyl under light of different wave length,different illuminating time,different temperature by means of using the WGS-9 chroma analysing instrument.

引言光谱分析在各个领域内有广泛的应用，对许多物质，光的吸收性是一个重要的本质特性，通过对物质的光谱分析可以得知它的元素组成成分[1]。在自然界中，叶绿素是广泛存在于植物的叶和茎中的绿色色素，它也有其特定的吸收光谱。

Well-documented Lu-Hf isotope data from the oceanic basalts show that,the starting area of magma melting for the MORBs derived from the DMM component would be in the the depth of garnet peridotite,i.e.at the depth of 80―90 km instead of less than 60 km,which is at the depth of spinel peridotite as proposed early.The HIMU component,which is characterized by its high rediogenic lead,is refered as a special mantle component differentiated at some time in geological history from the lower mantle.A correlation study of Hf-Nd isotope between the chondrite and oceanic basalts implies that no isolated primitive mantle might have remained.

大量的大洋玄武岩Lu-Hf同位素研究表明：具亏损地幔端元来源的洋中脊玄武岩岩浆部分熔融的初熔区位于石榴石稳定场深度，即深度为80-90 km的石榴石二辉橄榄岩地幔，而不是原来所认为的尖晶石二辉橄榄岩区(深度小于60 km)；以高放射成因Pb为特征的高U地幔端元应代表了下地幔物质在某一特定时期发生分异作用的结果；球粒陨石与大洋玄武岩Hf同位素对比研究表明，没有原始地幔物质能保留至今的迹象。

Cholesterol–cholesterol oxidase and glucose-glucose oxidase reactions were both coupled with different H2O2 production reactions to demonstrate the ability of biological luminescence and chromogen quantification and potential for diverse clinical diagnosis.

胆固醇–胆固醇氧化酵素和葡萄糖-葡萄糖氧化酵素氧化反应皆各自与不同过氧化氢光学反应结合，证明其具备冷光物质及发色物质定量能力，极具应用於不同临床分析的潜力。

Reductive conversion of geraniol to citronellol is adopted as a model reaction, and several factors in the reaction are discussed using gas chromatography method. The influence of n-hexane and butyl acetate, as organic solvents, on biocompatibility was studied; the influence of methanol, ethanol, glycol, n-butanol and 1-hexanol, as energy substance, on the transformation efficiency was compared, respectively; the catalysis capabilities of Baker's yeast, XST-KO yeast, LP yeast, alcohol yeast, dry yeast, Saccharomyces cerevisiae, Angel yeast and Meishan yeast were discussed. It has been proved that biocompatibility of n-hexane are much better than that of butyl acetate, and the hexane has been demonstrated the most effective in terms of the influence on biotransformation, Baker's yeast has shown the highest tranformation efficiency among the eight yeast strains.

以香叶醇转化为香茅醇作为模型反应，通过气相色谱法进行定性和定量分析研究了影响该有机相生物转化反应的几个基本因素，考察了两种有机溶剂正己烷和乙酸丁酯对生物相容性的影响，选用甲醇、乙醇、乙二醇、正丁醇和l-己醇分别作为能量物质进行实验，比较其对转化的影响并探讨了Baker's酵母、XST-KO酵母、LP酵母、酒精酵母、假丝酵母、干酵母、安琪酵母和梅山酵母八种不同酵母作为生物催化剂对模型反应的催化能力，结果表明，正己烷作为有机溶剂，其生物相容性明显好于乙酸丁酯，更加有利于该生物转化反应进行；乙二醇作为能量物质，该模型反应转化率最高；而 Baker's酵母作为生物催化剂，对该模型反应的催化能力最强，最适合作为该模型反应的催化剂。

A number of adsorption materials with various classical chelating groups as well as with macrocycles attached to silica gel by a chemical bond are applied.

许多吸附性物质得到了应用，这些物质具有各种各样的传统的鳌合物基团以及大的环烷基，它们通过化学键附在硅胶上。

Besides the material world and its substances, a spiritual world has to be in close harmony with them to achieve the goal.

除了物质世界和物质世界的精神，必须紧密和谐与他们实现这一目标。

Owing to the effect of turbulent pressure the region closed to the surface of AGB stars and giant stars are instable dynamically.

由于湍流压的作用，2.8M〓和7M〓恒生在AGB阶段和红巨星阶段，靠近表面的区域会出现动力学非稳定性，造成物质向外喷流，这就是AGB星和红巨星产生强大星风的物质损失的原因。

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