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The tribological properties of these compounds as oil and water base lubrication additives were evaluated using a four-ball test machine.

将上述合成的十一种化合物分别用作油基和水基润滑添加剂，在四球长时抗磨试验机上研究其摩擦学行为，在攻丝扭矩模拟评定试验机上评定其攻丝扭矩，并用EPMA和XPS对摩擦表面膜进行了形貌和结构分析。

Fractional distillation is a physical method which cannot decompose compounds.

分馏法只属物理方法，不能分解化合物。

Macroporous adhesive resin column and Sephadex LH20 column were employed to separate and fractionate the crude extract and the structures of the main compounds were analyzed by HPLC-ESI-MS.

通过大孔树脂结合SephadexLH—20对芒果多酚粗提物进行分离纯化和分级制备，采用HPLC-ESI-MS对主要组分的结构做了初步分析。

On the antioxidant capacity analysis, the total phenol content, vitamin C remaining, DPPH scavenging ability and FRAP reducing power of dried guava slice by addition phenolic compounds after formation cross-linkage was higher than that of the control.

在抗氧化力方面，添加酚类的乾燥番石榴果片及蜜饯在形成交联后的总酚含量、维生C残留量、DPPH自由基清除能力及FRAP还原力均高於对照组。

The carbon compounds sink in the pondwater and seep underground where bacteria digest them, setting up the perfect chemical conditions to free up the soil's arsenic.

碳元素在池水中沉降并渗入地下，在那里他们被微生物分解，为土壤中砷的释放提供了绝佳的化学反应条件。

The rapid method developed by this study may be applied to quantitative analysis of the off-flavour compounds in fresh-water fish.

该方法可用于水产品中挥发性成分的分析，并可为不良风味化合物的定量研究提供参考。

Compounds 1, 3, 4, 8, 9 were isolated from this plant for the first time.

化合物1，3，4，8，9为首次从该植物中分离得到。

The conclusion is as follows: One of the common characteristics of overseas textbook is that they all reflect the basic concept of "structure determines property, the property of structure". The logical structure of overseas textbooks of organic chemistry is that the nature of organic compounds closely related to the theory of organic chemistry by that relationship and transformation of functional groups decide the property and reaction.

国外教材的共同特点之一是体现出"结构决定性质，性质体现结构"的基本观念，从官能团间的关系与转化来统摄有机化合物的性质及其反应，使有机化合物的性质紧扣有机化学的相关理论，构成了有机化学教材的逻辑结构。

In this paper, from the viewpoint of latent functional group, application and development of heterocyclic compounds such as furan nucleus and thiofuran nucleus used in organic synthesis as pre-functional group are introduced.

本文从潜官能团角度概括介绍了呋喃环和噻吩环作为前官能团在有机合成中的应用及进展，展望了杂环作为前官能团在天然产物合成中的重要意义。

The final drink contains water, ethanol , fusel oils , and flavoring compounds.

最后酒后载水，乙醇，杂醇油，调味品和化合物。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了