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Sulfide layer was made on the surface of high speed steel (W6Mo5Cr4V2) by means of low temperature ion sulfurization. The tribological properties of the sulfide layer under dry sliding were investigated on an MM 200 friction and wear test rig. An atomic force microscope and a scanning electron microscope equipped with an energy dispersive spectrometer attachment were adopted to analyze the morphologies and compositions of the original and worn surfaces of the sulfide layer. The phase structure of the sulfide layer was determined by X ray diffraction.

采用低温离子渗硫工艺在 W6 Mo5 Cr4 V2高速钢表面制备了硫化物固体润滑层，在 MM- 2 0 0型摩擦磨损试验机上对渗硫层的摩擦学性能进行了干摩擦试验研究，用原子力显微镜及扫描电子显微镜和 X射线光电子能谱分析渗层表面、截面、磨面的形貌及成分，用 X射线衍射仪分析了渗硫层相结构。

Melodious music box games will let you piece these special compositions together and unleash their symphonious secrets!

悦耳的音乐游戏将会把这些特殊的乐章拼凑在一起，揭开和音的秘密！

Experimental Study on Inhibitory Activities of Bee Gel , Tea , Syzygium Aromatic um and Their Compositions on Streptococcus Mutans

蜂胶，茶叶，丁香组方对变形链球菌抑制作用的实验研究

Changxing Formation is the primary hydrocarbon source rock for the solid bitumen, while Feixianguan and lower Silurian are the subordination, according to the carbon isotopic compositions of the insoluble constituent and the biomarkers such as sterane and terpane in saturated hydrocarbons of the solvent extracts.

飞仙关组储层固体沥青的高温热变质成因是古油藏原油发生裂解的证据和标志。

A compound of formula wherein R1 is hydrogen, halo or methoxy; R2 is hydrogen, halo, methyl, ethyl or methoxy; R3 is carboxy, tetrazolyl, or -CONHSO2R where R is methyl, ethyl, phenyl, 2,5-dimethylisoxazolyl or trifluoromethyl; T is -CH2- or -SO2-; and ring A is 3-chlorophenyl, 4-chlorophenyl, 3-trifluoromethylphenyl, 3,4-dichlorophenyl, 3,4-difluorophenyl, 3-fluoro-4-chlorophenyl, 3-chloro-4-fluorophenyl or 2,3-dichloropyrid-5-yl; or a pharmaceutically acceptable salt or prodrug thereof, as well as pharmaceutical compositions containing them are described and claimed.

本发明涉及一种式化合物，其中R 1 是氢原子、卤素或甲氧基；R 2 是氢原子、卤素、甲基、乙基或甲氧基；R 3 是羧基、四唑基或－CONHSO 2 R 4 ，其中R 4 是甲基、乙基、苯基、2，5－二甲基异∴唑基或三氟甲基；T是－CH 2 －或－SO 2 －；环A是3－氯苯基、4－氯苯基、3－三氟甲基苯基、3，4－二氯苯基、3，4－二氟苯基、3－氟－4－氯苯基、3－氯－4－氟苯基或2，3－二氯吡啶－5－基；或其药用允许的盐或前药，还包括所阐述和要求权利的含有它们的药用组合物。

At the same time, the magnetic parameters of the titanomagnetite have the interrelationship with its chemical compositions.

同时，钛磁铁矿的磁性参数还与其主要化学成分有一定的相关性。

Their molecular compositions and structures were characterized by means of elemental analysis, EDTA titrimetric method, conductivity determination, FT-IR and UV spectroscopies; their thermal properties were studied by thermal analysis instrument.

通过红外光谱分析、紫外光谱分析、元素分析、EDTA配位滴定分析以及电导率的测定对铕三元荧光配合物的组成及结构进行表征。

The extracts of Torreya grandis epispem were obtained by both supercritical CO2 extraction and steam distillation, and their chemical compositions were analyzed by GC-MS qualitatively and quantitatively.

分别采用超临界CO2萃取法和水蒸气蒸馏法提取香榧外种皮提取物，并采用GC-MS分析手段对提取物的化学组成进行了定性和定量测定。

There was no significant difference between the fatty acid compositions of the toxigenic and non-toxigenic strains. Conclusion:FAME method is useful in rapid identification of Vibrionaceae strains and in field isolation of V. cholerae. It can be used to judge the relationships of strains in small outbreaks, but it cannot differentiate the subgroups of V. cholerae.

结论脂肪酸分型对弧菌种的快速鉴定有应用价值，对霍乱弧菌的现场分离鉴定有辅助意义，在小样本暴发资料的研究中能够反映菌株之间的亲缘关系，但其对霍乱弧菌种属内的各种特征性菌群不具有鉴别能力。

In this paper, the chemical equilibrium constants of the reactions in the reaction system of toluene disproportionation and trimethylbenzene transalkylation reaction system were carefully calculated , and the equilibrium compositions of the components at different temperatures and different feed mole ratios were analysed .

对甲苯歧化与三甲苯烷基转移反应体系中反应的化学平衡常数进行了详细计算，并对不同温度、不同进料组成下的平衡组成进行了分析。结果表明，随温度升高，甲苯与三甲苯的芳烃平衡转化率降低，二甲苯的平衡组成亦降低；降低进料中甲苯和三甲苯的摩尔比，甲苯和三甲苯的总芳烃平衡转化率降低，而二甲苯的平衡组成明显上升。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。