查询词典 hydrogen

Modified with SiO2 inhibits the hydrogen transfer reactions and formation of aromatics in liquid product.

SiO2的修饰抑制了氢转移反应及液体产物中芳烃的生成。

Hydrogen transfer reaction was present in the course of aromatization, anddehydrogenation...

在芳构化过程中既有氢转移反应，又有直接脱氢生成芳烃的反应。

Results Under normal production conditions, concentration of sulfuric acid, hydrochloric acid, arsenic hydrogen and sodium hydroxide which could cause occupational hazardous accidents met the occupational exposure limits.

结果 在正常的生产条件下引起职业病危害事故的硫酸、盐酸、砷化氢和氢氧化钠的浓度符合职业接触限值。

Examples are provided by the following preparations: arsenious sulphide from arsenious acid and hydrogen sulphide: gold or silver sols by reduction of the corresponding salts of gold or silver, silver chloride from very dilute solutions of silver nitrate and sodium chloride.

例子由以下准备提供：亚砷硫化物从亚砷酸和氢化硫：金或银sols 由金子或银，银色氯化物对应的盐的减少从非常硝酸银和氯化钠的稀溶液。

The first of these is the arginine/aspartate pair found in salt bridges, which involves hydrogen bonding between two charged species.

首先是精氨酸/天门冬氨酸对发现的盐桥，其中包括氢键收取两国之间的物种。

Asphaltum: Natural mineral compounds consist of carbon, hydrogen, sulphur and nitrogen or the residue from distillation of petroleum, coal tar or rosin.

沥青：天然产生的沥青是含有碳、氢、硫和氮的矿产化合物。人造沥青是蒸溜石油，煤焦油或松脂后的余下渣滓。

The measure error of circumstantialities is less than 5 percent. 2. The optimizing of circumstantialities reduces T/NH3 cost over 3 percent. 3. Hydrogen and nitrogenous eligible rate reach over 98 percent on the condition that less change of the amount. SanYuan Chincon Co., Ltd asseverate:"consumers can reimbursement if disinvestment can't be achieved in three months."

ZF—4系统属投资小，见效快的技改项目，它的技术指标有： 1、炉况测量误差小于5% 2、炉况优化降低吨氨入炉煤3%以上 3、氢氮比控制在无大加减量的情况下，合格率大于98%安徽三元公司郑重承诺：引进ZF—4系统若三个月收不回投资，用户可以退货。

A sudden eruption of hydrogen gas from the sun's surface; associated with sunspots and radio interference.

太阳表面氢气的突然爆发；经常和太阳黑子有关并导致无线电波干扰。

Line of hydrogen and its role in astrophysics.

氢原子的 21 cm 结构以及在天体物理学中的地位

The alternative is to liquefy the hydrogen at great expense and transport it in road tankers refrigerated with liquid nitrogen.

一个替代的办法是以巨大的代价把氢气液化，并用带液氮冷却的罐车运输。

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。