工艺过程

Recent research on the material pretreatment,factors of enzymolysis,mechanism and technology in the process of enzymic hydrolysis for cellulose were summarized in detail.

本文对纤维素酶法水解过程中有关原料预处理、影响酶解的因素、酶解机理及酶解工艺等方面的研究近况进行了较详细综述。

European or Traditional Process - Direct Method: The direct process involves softening the beans by steam first, then washing them for about 10 hours with either a methylene chloride or ethyl acetate solution to absorb the caffeine from the bean.

欧洲或传统工艺-直接方法：直接过程涉及软化咖啡豆的蒸汽，然后洗涤他们大约10小时带有二氯甲烷或乙酸乙酯溶液吸收咖啡因的咖啡豆。

After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

具体制备工艺为：首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸，再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合，发生SN2反应，得到相应的三乙酯，然后经水解和脱羧，得到-苄基丁二酸；在实验中乙醇钠要和丙二酸二乙酯充分反应，避免生成肉桂酸乙酯；该过程操作简单，原料便宜，产率较高，总收率可达到26.8%。

Joined Everlast, you will with a strong product protection and leading technical services company of a global brand to provide you with a series of car maintenance and world-class technical support new products.

国际先进的润滑调和设备：结构精巧，性能优良；工艺先进，半连续流程、半自动化控制，计量准、精度高，生产灵活；能耗少，效率高，日处理量大，生产过程无污染、零排放，卫生环保。

The study was to provide the theoretical basis for excipient selection, formulation design and process optimization in composting process of rabbit dung.

［目的］为兔粪堆肥过程中的辅料选择、配方设计及工艺优化等提供科学依据。

According to the results of thermodynamic calculations and the flyash-sodium carbonate sintering experiments, contrasting the energy consumption, material resource consumption and the expellant of the greenhouse gas CO2 during the two sintering processes, it demonstrates that the procedure could be the least consumptions of the mineral resources and energy, the least expellant of the greenhouse gas CO2, and that the terminal products with high value could be manufactured when sodium carbonate is taken as the flux agent.

基于热力学计算结果，对比了两种工艺的能耗、物耗、温室气体排放量等因素，结合粉煤灰－碳酸钠烧结反应实验，证明以碳酸钠为配料，高铝粉煤灰烧结过程具有一次性资源消耗量少，能耗最低，温室气体CO2排放量最小，且可生产高附加值产品，实现完全清洁生产等优点。

According to the RGB and color and preoutgassing of practical experience, under normal circumstances table printed business card printing and membership card for making color: white ?ú brevibacterium ?ú?ú?ú cyan-magenta Black-Indian (dark to light-colored) business card printing and membership card for making color: black ?ú cyan-magenta ?ú brevibacterium ?ú?ú white but sometimes depending on the process requirements can be appropriate adjustments.

根据三原色的变化规律及套色原理，以及生产过程中的实际经验，一般情况下表印的制卡和会员卡制作色序为：白色→黄色→品红→青色→黑色里印的制卡和会员卡制作色序为：黑色→青色→品红→黄色→白色但有时侯根据工艺要求还可以做适当的调整。

Surface modification of powder is a important artifice, also is the magnitude content of new materials、 new crafts and new product exploder.

粉体表面改性是材料制备过程工程的重要手段，也是新材料、新工艺和新产品开发的重要内容。

This paper presents the general methods and process of panel die design in PRO/E environment. The design can be top- down and bottomup. The emphasis is on the design and analysis of die surfaces under the PRO/DIEFACE including extensions, extension ratio, spring back ,etc.

本文探讨在PRO／E环境下采用自顶向下和自底向上的方法进行覆盖件模具设计的技术、方法和过程，着重叙述利用PRO／DIEFACE进行模具接触面设计、分析和空间曲面处理的步骤，包括模具型面、工艺余料、法兰、拉深筋、弹复角的生成和成形度分析等。

Its basic structure, working process and application in experiments for extractive process were reviewed.

介绍了微型离心萃取器的基本结构、工作过程及其在一些萃取新工艺实验研究中的应用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐