查询词典 purification

Products are mainly used in air purification and ultra-fine fiber filter membrane.

产品主要用于空气净化和超细纤维过滤膜。

The end of 2007, the company works to professional cleaning service to be extended, with mechanical cleaning technology, central air conditioning cleansing purification project, the robot air duct cleaning, washing of the widely used chemicals, petroleum, petrochemical, oil tank, metallurgical, power, Light industry, printing and dyeing, paper making industries such as equipment boiler, heat exchange, condenser, compressor, ammonia cooler, Air Preheater, equipment Jacket, central air conditioning, heating systems portfolio, and large complete sets of equipment, etc.

07年底，公司业务向专业清洗工程服务扩展、拥有机械清洗技术、中央空调清洗净化工程、机器人风管清洗等，清洗范围广泛应用于化工、石油、石油化工、储油罐、冶金、电力、轻工、印染、造纸等行业的设备（锅炉、热换器、冷凝器、空压机、氨冷机、空预器、设备夹套、中央空调、采暖组合系统、大型成套装置等）清洗和中央空调系统的清洗。

Its leading products are: home, commercial central air-conditioning units and the end products, purification of air conditioning products, pressure filter, fire fighting equipment, steel products, such as glass, has passed ISO9001 quality management system certification and ISO14001 environment system certification.

其主导产品有：家用、商用中央空调机组及末端产品、净化空调产品、压力过滤机、消防设备、玻璃钢制品等，已通过ISO9001质量管理体系认证和ISO14001环境体系认证。

Products include household, commercial, industrial air-conditioning and refrigeration equipment units, and the corresponding design and installation of air purification, constant temperature and humidity, low temperature refrigeration equipment and engineering.

产品范围包括家用、商用、工业空调和冷冻设备机组，并设计安装相应的空气净化、恒温恒湿、低温冷冻设备及工程。

The processing technique of synthesis and purification of medium-chain triglycerides by alcoholysis, using camphor tree seed oil as material, was investigated by orthogonal analysis, and the optimum condition of the processing technique and performance parameter of product were obtained.

以樟树籽仁油为原料，通过正交实验法研究了用醇解法合成和纯化中碳链甘三酯的生产工艺，得到了中碳链甘三酯生产工艺的最佳条件及产品的物性参数。

Progress on preparation and purification of trichlorosilane ;2. Study on synthesis of trifluoropropyl trichlorosilane ;3. The alcoholysis of trichlorosilane has been studied experimentally and theoretically,each step is cooperating endothermic process.

采用溶剂法和B3LYP/6-31G基组研究了三氯硅烷的乙醇解反应，计算得出每一步醇解均为放热反应，并得出了反应的最佳温度、最佳进样方式、主反应和副反应的活化能及其可能的反应途径曲线。

Its are main the purpose is the purify rate that raises COD, BOD, restore the self-purification ability of water system and alexipharmic function, increase the environmental size of water system.

其主要目的是提高COD、BOD的去除率，恢复水体的自净能力和解毒功能，提高水体的环境容量。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

Among them Aloe vera and Aloe arborescens, more appropriate for industrial production, were selected for further investiment on the contents of active components in relation to leaf position and leaf part, isolation and purification of gel and skin polysaccharides, thermal stabilities of active components including polysaccharides, aloin and protein.

在此基础上，对库拉索芦荟和木立芦荟中的活性成份与叶片生长位置的关系，芦荟皮多糖和凝胶多糖的分离提纯，芦荟活性成份的热稳定性等方面进行了深入的比较研究。

Products Company, one of the leading series of aloe cosmetics, its raw materials are used for more than three years of Zhiling Curacao Aloe sophisticated, refined, stability, purification, separation of a series of high-tech means to retain the integrity of aloe a variety of active ingredients, such as amino acids, saponins, Aloin, monosaccharides and polysaccharides, lignin, etc., is pure natural green functional cosmetics.

公司主导产品之一的芦荟系列化妆品，其原料均采用三年以上植龄的库拉索成熟芦荟，经提炼、稳定、纯化、分离等一系列高科技手段，完整地保留了芦荟中多种活性成份，如氨基酸、皂角苷、芦荟甙、单糖和多糖、木质素等，属纯天然绿色功能性化妆品。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。