查询词典 in sb.'s presence

Finally, pentyl acetate and benteine could be respectively synthesized by esterification reaction in the presence of nanometer rare earth composite solid superacids (SO_4)~(2-)/ZrO_2-Gd_2O_3 and (SO_4)~(2-)/ZrO_2-Nd_2O_3. The effects of reaction time, reaction temperature, the mol ratio of acid to alcohol and the use level of catalyst on esterification yield were discussed. In the end, we obtained their optimal reaction conditions.

采用纳米稀土复合固体超强酸SO_4~(2-)/ZrO_2-Gd_2O_3，SO_4~(2-)，~/ZrO_2-Nd_2O_3分别合成了乙酸戊酯和乙酸苄酯两种香料，实验考察了反应时间、反应温度、醇酸比及催化剂的用量对酯化率的影响，并由此得出反应的最佳条件。

Development of traditional ground heat energy basically relies on artificial perambulate, search the subterranean vapour of natural presence or hot spring area, this makes development of ground heat energy is restricted by a lot of and natural condition.

传统的地热能开发主要靠人工勘查，寻找天然存在的地下蒸汽或温泉区，这使地热能开发受到诸多自然条件限制。

For that which makes no perceptible difference by its presence or absence is no real part of the whole.

因此，感知不能分辨其存在与否的事件并非整体真正的组成部分。

The presence of a large percussion battery, always deployed with great subtltey and musical perceptiveness, probably helps get aural focus.

大的敲打电池的出现，由于很棒的 subtltey 和音乐的知觉总是展开，或许帮助拿耳的焦点。

The thermal decomposition behavior of ammonium perchlorate was investigated in the presence of Mg2NiH4 by the method of DSC.

用热分析法研究了Mg2NiH4对高氯酸铵热分解过程的影响。

In fact, the presence of the knowledge system may help enable performative ties because the basic stuff is already there.

事实上，知识系统可以帮助建立更好的主动性联系，因为最基本的材料已经都在那里了。

Aim To investigate the relation of pericardial adipose tissue volumes to risk factors, presence of coronary artery disease, and severity of coronary atherosclerosis.

目的 分析心周脂肪体积与心血管危险因素、冠心病的发生和冠状动脉狭窄程度之间的关系。

He demonstrated the presence of mind in the perilous situation.

在这个危险的处境中他表现得镇定自若。

To investigate the factors associated with the presence of spontaneous bacterial peritonitis in patients with hepatitis B virus?

目的 研究乙型肝炎肝硬化患者并发自发性细菌性腹膜炎的相关危险因素。

This expansion is due to the presence of two to six percent combined water in the crude perlite rock.

这种膨胀的原因之一是存在的五点五十八百分之结合水原油珍珠岩岩石。

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。