查询词典 in sb.'s presence

Benzyl bromide was synthesized from potassium bromide ,a by-product from synthesis of 2-hydroxy-4-n-octyloxybenzophenone(UV-531),and benzoic alcohol in the presence of concentrated sulfuric acid.

溴化钾作为工业生产2-羟基-4-正辛氧基二苯甲酮的副产品，在浓硫酸存在的条件下，与苯甲醇进行反应合成苄基溴。

METHODS 3-hydroxyestrogen reacted with dimethylsulfate in acetone in the presence of potassium carbonate.

方法以含3－酚羟基的雌激素类化合物为原料，丙酮为溶剂，在碳酸钾存在下与硫酸二甲醋反应。

The reaction of condensation-cyclization of the two prepared compounds at 100 ℃ in the presence of anhydrous potassium carbonate gave 1,4,7,10-tetrakis(p-toluenesulfonyl)-1,4,7,10-tetraazacyclododecane,with a yield of 71%.

在无水碳酸钾存在下，100℃加热使所得两种磺酰化产物缩合环化得到1，4，7，10-四-1，4，7，10-四氮杂环十二烷，产率71.0%。

Several experiments were desighned to reveeal the reaction mechanism of phenolphthalein during its condensating with DCDPS in presence of potassium carbonate.

利用13C-NMR方法研究了弱碱K2CO3存在下酚酞成盐反应及其与活性双卤砜亲核缩聚反应过程中的结构特征。

We have a growing presence in gas and power and in solar power generation.

我们在天然气、电力和太阳能发电方面得以不断壮大发展。

No other power cord, sounds transparent, has excellent "presence", very good PRaT and a

非常好的PRaT 感，非常高的清晰度，中频的声音非常自然。

Organic solvents can be utilized as a primary precipitant, as a secondary precipitant in the presence of salt or polymer, or as additives.

这些有机溶剂可以作为主要的沉淀剂，也可以在盐和多聚物存在时作为辅助沉淀剂，还可以作为溶液的添加剂。

Because of their precipitous nature, most of the islands are uninhabited and unaffected by a human presence.

由于地势陡峭，大部分岛屿无人居住且没有受到人类活动的干扰。

"Give me", said the prelate, a just tribunal, or allow me to meet my accusers face to face in your presence.

" "给我说："总主教，"正义法庭，或允许我满足我的控诉，面对面地在你的存在。

It is the Chinese which preoccupy the Russian Far East and their presence is highly visible.

中国人抢先占据了俄罗斯的远东地区，他们的出现是相当明显的。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。