Obtained by way of ancient distillation methods from genetically im proved fresh fruits and flowers.
以古老的蒸馏法由品种改良的鲜果及花朵中萃取而得。
Today, the retorts and pot stills have been largely supplanted by more efficient distillation methods in most industrial processes.
如今，在许多工业过程中，绝大部分曲颈瓶和罐式蒸馏器已被效率更高的蒸馏方法代替。
The current desalination methods, distillation and reverse osmosis, are expensive and require lots of energy.
目前海水淡化的方法是蒸馏和反渗透，价格昂贵，而且需要消耗大量能源。
The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
There exist two physical methods of obtaining very pure wastewater freezing and distillation .
有两种达到高纯处理废水的物理方法-冷冻和蒸馏。
The advantage and disadvantage of the five recycling methods, direct heating, direct aqueous vapor, indirect aqueous vapor, reduced pressure distillation, precipitation method, is discussed.
探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。
There exist two physical methods of obtaining very pure wastewater freezing and distillation.
有两种达到高纯处理废水的物理方法-冷冻和蒸馏。
METHODS The chemical constituents of volatile oil were extracted by distillation and analyzed by GC-MS.
方法：用水蒸气蒸馏法提取艳山姜挥发油，用气相质谱联用（ GC- MS）对挥发油成分进行分析。
The three main methods for high purity zinc preparation, including electrolytic method, vacuum distillation, zone refining, are summarized and compared in this paper.
本文对目前高纯锌的三种主要制备方法(电解法、真空蒸馏法、区域熔炼法)进行了综述和比较。
Tow researching methods of design of continuous reactive distillation processes are addressed in this paper Analysis of statics and orthogonal collocation on finite elements (OCFE).
介绍连续反应精馏过程设计的两种研究方法：静态分析法和有限元正交搭配ocfe法。
Methods The volatile oil was obtained from PPFA by steam distillation.
方法采用水蒸气蒸馏法从枳壳中提取挥发油。
Recently, some new methods, such as supercritical chemical reaction, membrane reaction, and reactive distillation, have been applied to improve the selectivity of complex reaction.
近年来，出现了一些提高复合反应选择性的新方法，如：超临界反应、膜反应、反应精馏等。
Methods: The volatile oil was extracted from Fructus Aurantii by steam distillation.
方法：采用水蒸气蒸馏法从枳壳中提取挥发油。
Methods: The volatile oils were extracted by using steam distillation. The components were identified and separated with GC-MS.
方法：采用水蒸气蒸馏法提取白花前胡饮片的挥发油，用GC - MS法对其化学成分进行鉴定。
Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.
介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。
METHODS :The essential oil was extracted by steam distillation.
方法：采用水蒸汽蒸馏法提取挥发油。
Methods Volatile oil was extracted from the sample by steam distillation, and its chemical components were analyzed and identified by GC-MS.
方法以水蒸气蒸馏法提取样品中挥发油，采用GC - MS联用技术对挥发油进行成分分析。
METHODS The volatile oils were extracted with steam distillation. The components were separated and identified by GC MS and elucidated on the standard mass spectral data.
方法以水蒸汽蒸馏法提取挥发油，分别得到不同样品的挥发油，以气相色谱质谱联用（GC MS）联用技术对其化学成分进行分离和鉴定。
Five treating methods of contaminated product are often used, that is, back tail treatment, distillation, metal-oxide treating, caustic treating and filtration.
常用的混油处理方法有五种，分别是回掺法、蒸馏法、金属氧化物法、碱处理法和过滤法。
METHODS The volatile oil was extracted from Ligustrum lucidum Ait of Gansu by steam distillation, and its ingredients were isolated and identified by gas chromatography-mass spectrometer (GC-MS).
方法采用常规水蒸汽蒸馏法对甘肃天水产女贞子提取挥发油，用气相色谱质谱联机进行分离鉴定。
Objective The essential oils from Nepeta cataria L. were extracted by steam distillation. Methods The chemical constituents were analyzed by GC-MS.
目的采用水蒸气蒸馏法从荆芥中提取挥发油。
Methods The volatile oil chemical compositions of leaf of Gymnema sylvestre(Retz. )Schult were extracted by water vapor distillation, and then were separated and identified by GC-MS.
方法采用水蒸气蒸馏法提取广西匙羹藤叶挥发油，并用GC-MS法分离分析其成分及相对含量。
The inhibitory effect of ginger extract on microorganisms was studied with different methods, which were hydraulic extraction, ethanol extraction, ultrasonic extraction and vapor distillation.
以生姜为材料，研究不同提取方式包括水浴加热浸提法、醇提取法、超声波浸提法和水蒸气蒸馏法对微生物的抑制作用。
Methods The essential oil was extracted by steam distillation from sunning-fixed sample and sulfur-smoke-dried sample, and their components were analyzed by GC-MS.
方法采用水蒸气蒸馏法分别提取八角茴香杀青晒干品及其硫熏干燥品的挥发油，用GC鄄MS 法鉴定挥发油成分。
By controlling the hydration of alkoxide, and with n-butanol azeotropic distillation and ethanol rinsing methods, the preparation process of superfine titania powder was investigated in detail.
利用控制醇盐水解的方法，分别采用正丁醇共沸蒸馏和乙醇洗涤这两种工艺，详细研究了超细二氧化钛粉体的制备过程。
Methods: A distillation method was used to extract the volatile oil and a gas-mass spectrometer was used to analyze the chemical composition.
方法：用水蒸汽蒸馏法提取紫色姜挥发油，并通过气相-质谱联用仪分析研究。
MethodsBy steam distillation and GC-MS analysis methods, chemical compounds were analyzed qualitatively using relative reservation index, and analyzed quantitatively by area normalization.
方法通过水蒸气蒸馏，利用GC-MS进行分析，采用相对保留指数对化合物进行定性，用峰面积归一化法进行定量。
Reactive distillation for synthesizing ethyl acetate was taken as an example to demonstrate the proposed simulation and optimization methods.
以合成乙酸乙酯的反应精馏过程为例说明上述模拟和优化方法。
Reactive distillation for synthesizing ethyl acetate was taken as an example to demonstrate the proposed simulation and optimization methods.
以合成乙酸乙酯的反应精馏过程为例说明上述模拟和优化方法。
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