• Such a rematch would add a little extra spice to opening night, especially if Dirk received his ring right in front of LeBron before tipoff.

    这样将会给我们的揭幕战增添一些别样的趣味的,尤其是德克诺维斯基勒布朗等人的面前领取自己的总冠军戒指

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  • What a moment it will be when we ring the Centennial bell to signify the opening of the Centennial Convention in Chicago!

    我们宣布芝加哥敲响百纪念象征周年纪念年会正式开始时,那会多美好的一刻

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  • Polylactic acid (PLA) is a linear aliphatic polyester produced by poly-condensation of naturally produced lactic acid or by the catalytic ring opening of the lactide group.

    乳酸(PLA)一种线性脂肪族聚酯乳酸自然产生丙交酯缩合催化剂产生。

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  • Synthetic reactions of hyperbranched polymers included condensation reaction, addition reaction, ring - opening reaction, grafting reaction, etc.

    超支化聚合物合成反应主要有缩聚反应、加成反应、聚合、接枝反应

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  • The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.

    第二金属催化条件下,使第一步产物缩水甘油发生加成反应生成双子表面活性剂中间体低聚二醇。

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  • This article reviews the ring opening reaction of five membered nitrogen containing heterocyclic compounds.

    综述了近年来各种反应及其在有机合成中的应用。

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  • The hydrogenation saturation of aromatics and selective ring opening of cycloalkane were the most important process during deep dearomatization of diesel oil.

    单环芳烃加氢饱和环烷烃选择柴油深度脱芳过程中的重要反应。

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  • There are two main methods to synthesis PLA, ring - opening polymerization of lactide and condensation polymerization of lactic acid.

    乳酸合成主要两种方法交酯的聚合乳酸直接缩聚

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  • Showing that the country has a sense of humour, dancers during the opening section of the show mocked the moment a ring failed to open during the opening ceremony.

    闭幕式开头舞者们模仿开幕式中因技术故障未能绽放五环展现出俄罗斯的幽默感

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  • The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst.

    研究以KOH催化剂,二元三元醇为起始采用阴离子聚合合成淬火共聚醚。 结果表明:产物的分子量随起始剂杂质量减少而增加;

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  • The process of jet mixing in the reactor was studied with tracer technique and the effects of the opening structure on the wall of the feed ring and the momentum ratio to the jet mixing were analyzed.

    文中采用示研究了四氯化钛氧化反应器内径向射流混合特征,探讨射流开孔结构动量比等因素射流混合效果影响。

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  • The degree of hydrocarbon evolution increases with depth, which is accompanied by demethylation of alkanes, ring opening of cycloalkanes, aromatization and heightening alkylating degree.

    随着演化程度加深,链烷烃甲基环烷烃作用、构化作用烷基化程度不断提高

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  • Ji blue glaze pan-blue micro-purple, some glazed opening piece of fine grain, rim, ring foot of the glaze is applied a layer of sauce, even greater spiritual Smart.

    釉色蓝中微紫色,有些釉面细小,口沿,处施色釉,倍觉精神灵动

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  • Dimethyldiphenyl RTV silicone rubber with low phenyl contents was synthesized by ring opening copolymerization of phenyl cyclic siloxane with DMC.

    苯基体、二甲基硅氧烷为原料,在催化剂存在下,共聚、降解、脱除沸物,制得低苯基含量的二苯基硅橡胶

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  • Ring opening reaction of 2, 3-epoxy ketones with nitric oxide in dichloromethane occurred in a syn-selective fashion, producing syn-2-hydroxy nitrates as main products.

    二氯甲烷溶液中,一氧化氮导致2,3 -环氧发生顺式反应生成顺式羟基硝酸酯化合物主要产物。

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  • This paper reports a new green ring opening reactions of aziridines with H_2O.

    本文主要研究了一种利用氮杂环丙烷反应合成邻位氨基醇有机反应。

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  • Poly(L-lactide)(PLLA) was synthesized by ring-opening polymerization of L-lactide using cyclic tin alkoxide compound as initiator.

    以环烷化合物引发L-交酯开聚合制备高分子量聚L-乳酸。

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  • The of polylactic acid(PLA) was obtained by ring-opening polymerization and the synthesis conditions to get 444,848 molecular weight were optimized.

    采用间接开聚合法合成平均分子量为444 ,848的聚乳酸,并对合成工艺作了优化。

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  • There are two main methods to synthesis PLA, condensation polymerization of lactic acid and ring-opening polymerization of lactide.

    乳酸合成主要两种方法乳酸直接缩聚交酯开环聚合

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  • The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.

    利用三乙胺盐酸盐酚醛环氧树脂进行开反应合成了酚醛环氧树脂季铵盐

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  • This paper reviews briefly recent developments in the regio and stereoselective ring opening of 2, 3 epoxy alcohols and their derivatives by a variety of methods.

    简要综述了对2,3 -环氧及其衍生物进行区域立体选择性各种方法的近期进展

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  • It was found that the ring opening polymerizations of epoxide based monomers with THEIC can be carried out in a heterogeneous medium smoothly.

    发现THEIC环氧单体非均体系中平稳地进行阳离子开聚合反应。

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  • The molten steel smelting tundish cover plate is provided with a guard ring made of fire-resistant fiber composite material is arranged at the opening and can withstand greater thermal deformation;

    实用新型钢冶炼中间盖板孔处装有耐火纤维复合材料制成承受较大的变形

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  • Using sodium dicyandiamide and saccharin as raw materials, tribenuron-methyl is synthesized via ring-opening reaction, phosgenation and condensation with total yield of 57.

    双氰胺糖精起始原料,经过开、光气化、缩合等一系列反应制备了磺隆,合成反应的收率可达57。

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  • High molecular weight linear products were regenerated after the ring-opening polymerization of the cyclo-products using potassium phenoxide as initiator.

    环状产物又在阴离子引发剂联苯双酚作用进行开环聚合重新得到分子量线性产物。

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  • The snap ring is a ring with opening part, the inside of the ring is arranged with a circle of step which is used to buckle the wheel core, and the surface of the step has downward inclined arc shape.

    具有开口形体,环形体内侧设置用于扣压台阶,台阶表面具有向下倾斜弧面形状。

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  • After opening the housing, loosen the two side ring nuts of the lamp to replace and remove it from the mountings.

    打开外壳拧开两边环状螺帽,将灯泡悬挂框下。

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  • The ring opening polymerization of aminoacid N-carboxyanhydrides ( NCAs) was applied to the synthesis of cylindrical polypeptide brushes by using the " grafting from" technique.

    本文通过“胺”引发氨基酸酸酐聚合机理及“表面接枝”路线合成多肽分子

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  • ML-PLLA was synthesized by ring-opening polymerization of L-lactide in the presence of mannitol, it has the characteristic of low melt viscosity.

    丙交甘露糖醇分子上引发聚合得到ML—PLLA具有熔体粘度的特性

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  • ML-PLLA was synthesized by ring-opening polymerization of L-lactide in the presence of mannitol, it has the characteristic of low melt viscosity.

    丙交甘露糖醇分子上引发聚合得到ML—PLLA具有熔体粘度的特性

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