查询词典 chemical process

With some examples, the correlat ions between the thermal expansion coefficients of minerals and the types of cr ystal structures, the nature of chemical bonds, the valencies of ions , the interionic distances, the percentage ionic characters, the electronic conf igurations of ions and the chemical compositions are discussed and summarised . The crystal chemistry approach has been used in the calculation of the th ermal expansion coefficients for minerals with simple structures and composition s.

晶体化学方法是研究矿物热膨胀系数的有效方法，但由于矿物的热膨胀系数和晶体化学参数之间的定量关系尚未完全弄清，目前仅仅能对简单结构矿物的热膨胀系数进行计算，结构、成分较复杂的矿物的热膨胀系数计算尚缺乏好的晶体化学模型。

The ionization potential of an element is a measure of its ability to enter into chemical reactions requiring ion formation or donation of electron s and is related to the nature of the chemical bonding in the compounds formed by elements

为元素参与取得离子形式或移出电子的化学反应能力的量度，也与元素形成化合物中的化学键的性质有关。

The ionization potential of an element is a measure of its ability to enter into chemical reactions requiring ion formation or donation of electrons and is related to the nature of the chemical bonding in the compounds formed by elements

为元素参与取得离子形式或移出电子的化学反应能力的量度，也与元素形成化合物中的化学键的性质有关。

The results showed that there's clear negative correlation between the chemical components such as protein, total nitrogen and nicotine etc., and the sensory quality such as quality and concentration of aroma, offensive taste, irritancy, after taste and so on, but these chemical components and the sensory quality such as physiological strength an...

然而 ，烟叶化学成分是相当复杂的，目前在烟叶中已鉴定出的化学成分已超过 30 0 0种，因此，要直接分析烟叶化学成分与烟叶质量的关系是困难的。目前主要采用的方法是数理

This rubber is isobutylene of pvp-k, complete saturated rubber, So has the extremely good physical and chemical properties, for example have good ozone-resisting aging resistance, oxygen ageing resistance, light ageing resistance, climate aging resistance, the chemical stability and excellent air tightness and water resistance, excellent elasticity and energy absorption performance.

该橡胶是异丁烯的均聚物，无双键，为完全饱和橡胶，所以具有极好物理和化学性能，如，良好的耐臭氧老化性、耐氧老化性、耐气候老化性、较好的化学稳定性、优异的气密性和耐水性，极好的弹性和能量吸收性能。

The isopiestic method for multicomponent saturated solutions combines isotonic equilibrations with chemical analyses and determines the solubilities of saturated solutes and water activities simultaneously, which makes sure that the experimental solubilities and water activity refer to the true thermodynamic equilibrium and the most precise chemical analyses.

多元饱和溶液的等压法将等压平衡与化学分析统一起来，同时测定饱和溶质的溶解度和水活度，可以确保溶解度和水活度的实验值是由可靠的热力学平衡和精确化学分析确定的。

Objective To investigate the chemical constituents from the seeds of Mirabilis jalapa. Methods Various chromatographic techniques were used to separate the chemical constituents.

目的 研究紫茉莉子的化学成分方法利用各种色谱技术进行分离和纯化，通过理化方法及NMR、IR和MS 等方法解析其化学结构。

Methyl isobutyl ketone is one of the most important chemical products, which is widely used in the field of chemical engineering.

甲基异丁基酮是一种重要的化工原料，应用十分广泛。

Categories of high, medium and low-pressure containers, paper machine, Dao Shuren, grinder, a round knife grinder and Mo Daoji long knives, and other light industrial machinery and chemical equipment manufacturers of professional, with more than 40 years manufacturing pressure vessels, chemical equipment, paper making machinery, light industry machinery of history.

类高、中、低压力容器，造纸机、长刀磨床、圆刀磨床及超长刀具磨刀机等化工设备及轻工机械的专业厂家，具有40多年生产制造压力容器、化工设备、造纸机械，轻工机械的历史。

There is one of: Jiangnan Shipyard for Denmark's AP Mora built chemical tanker 16000DWT; for Taiwan's Formosa Plastics Maritime, built 17000M3LPG ships; for Navigator Holdings USA 22000 M3LPG built ships; for Germany KRS the 74000DWT bulk freighter built; for¨÷íBelgium the construction of 76000 DWT bulk cargo ship; for the China Shipping Group, the construction of passenger ships wheel;¤for Norway built chemical tanker 16400DWT ; Yuehai train ferry project and other supporting facilities.

莫拉公司建造的16000DWT化学品船；为台湾的台塑海运公司建造的17000M3LPG船；为美国Navigator Holdings建造的22000 M3LPG船；为德国的KRS建造的74000DWT散货轮；为比利时波西马建造的76000 DWT散货轮；为中海集团建造的客滚轮船；为挪威的斯丹纳森公司建造的16400DWT化学品船；粤海火车轮渡等工程的配套。

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。