化工工艺

Author has introduced the process design method for steam tracing system of chemical piping ;has discussed the relative regulation,code and gist in the steam tracing design at home and abroad from aspects of diameter,quantity,and max.

介绍了化工管道蒸汽伴热系统的工艺设计方法；从伴管的直径、数量、最大允许长度、U型弯累计上升高度以及伴管、疏水器、紧固件的材料等方面论述了国内外蒸汽伴管设计相关规定、规范和要点；结合工程实例，论述了伴管蒸汽的引入和伴管敷设时相关注意事项，以及在最大允许范围内出现袋形累计上升的高度值问题。

Using the most advanced investment casting process, production of various kinds of stainless steel, etc. materials precision castings, product is widely used, almost covering the whole mechanical manufacturing and machining industries can be applied fields, mainly medicine, printing and dyeing, chemical industry, ship, railway, mechanical and electrical products, machinery and construction machinery industry.

公司采用最先进的熔模铸造工艺，生产各类不锈钢等材质的精密铸造件，产品应用十分广泛，几乎覆盖整个机械制造和机械加工行业的可应用领域，主要有医药，印染，化工，船舶，铁道，机电，农机，建筑等机械行业。

The extracting technology included calcium salt method and high vacuum distillation method, etc.

最后对南京绿天源生物化工工程有限公司的乳酸炼制工艺的流程和技术特点进行了简要介绍。

It mainly introduces formulary type of chemical products for daily use, such as soap, cosmetics, synthetic detergent, and kinds of cleaning agent, and introduces formulary principle of kinds of products, process technology and related production equipments, especially in making a detail introduction for typical chemical products of daily use at present and the analysis of products.

主要介绍配方型日用化工产品，如肥皂、化妆品、合成洗涤剂及各类清洗剂，讲述各类产品的配方原理，制作工艺，相关的生产设备。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。