化学加工

The results showed that with the increasing of repetition frequencies, power density, and pulse width of laser beam and with the decreasing of scanning speed, the kerf quality could be improved. Besides, a formula of estimating the kerf surface roughness was also presented, which can explain the experiment results well.

在加工电子行业中表面组装用的模板时，一般采用化学刻蚀法，其缺点是加工精度低、工序多、周期长，特别是受刻蚀因子的限制，模板的最小缝隙宽度不能低于模板厚度的 1 2 ，因而难以满足日益发展的微电子技术对电子线路制作精度的要求。

Characteristics and Processing of Saccharide 》 is one of main courses of the specialities of the Saccharide Engineering.

糖类的特性与加工》是制糖工程方向本科生的主要专业课程，是针对本科生完成了食品化学，生物化学等相关课程之后而设置的课程。

The experiment results show that the active reaction groups in chemical degradation canbe restrained by a little auxiliaries of ultraviolet resistant, heatproof antioxdant and antiager etc. which addedin PP.

加工温度选择是有效利用化学阵解剂来改善PP熔体流动性的重要条件之一，同时PP分子链与化学活性基团的降解现象是有温度依赖性的。

There are some basic chemicophysics problems about the foaming extrusion processing to be studied and clarified. The relationship between the formula, the processing condition, the apparatus parameter setting and the density, the physicomechanical properties, rheological property, were researched in detail in this artical, according to the extrusion process of PVC in the rheometer.

但在其低发泡挤出过程中尚有许多基本化学物理问题有待研究，本文利用PVC在流变仪的挤出加工，详细研究了相关配方、工艺条件、设备参数设定与发泡PVC制品的密度、物理机械性能以及加工流变性的关系。

It\s needed to do more data processing such as inside and outside boundaries recognition, facular radius compensation, scanning and path planning to generate process control data. The STL file should be translated into CLI file, then into SMP file. In order to satisfy with the request of initial system, I inject some new arithmetic in the transformation, including inside and outside arithmetic and processing compensation arithmetic.

从三维建模到切片处理，再到扫描处理，最后得到层片的扫描路径文件，其中需要对截面轮廓进行诸如内外轮廓识别、工艺补偿、扫描及加工路径规划等一系列的工艺数据处理，文件的转化过程为从 STL 文件到层片文件，再到加工路径文件，为了满足制作化学芯片的一些特殊要求，在转化过程中加入了一些新的算法，内外边界识别算法和工艺补偿算法。

The PCBN cutting tool, with many advantages such as good wear resistance, thermal and chemical stability, low friction factor and so on, has incomparable superiority when hard machining ferreous materials, instead of grinding, is becoming a new kind of finish machining way.

PCBN刀具具有硬度高、耐磨性好、热稳定性和化学稳定性好，导热性良好以及摩擦系数低等优点，在硬态加工铁系材料时具有无可比拟的优越性，正逐步取代磨削加工而成为一种新的精加工途径。

H.伸缩环转动环伸缩环垫片前轴封 S D / L D / S L M E C H A N I C A L S E A L P U M P S SD/LD/SL SERIES PUMPS The SD/LD/SL series are dependable, self priming pumps. The full motor horsepower is translated into fow via the shaft. These pumps are used for a wide range of applications, from chemical transfer to process solution recirculation to waste treatment. This series is capable of self-priming up ro 20 feet of lift. The mechanical seal is a self-cooling, Tefon bellows which is cooled by the solution being pumped. The construction materials and seals avaiable make this pump extremely versatile. The horizontal design has a working temperature from167℉ to 194℉(75℃ to 90℃), depending on the material of construction, and can handle most chemical solutions. The SD/LD/SL series pumps are designed to run outside the tank or process module. The SD/LD series pumps incorporate a FRPP molded base, legs and pump-to-motor casing. There are no bolts or metallic parts in contact with the solution being pumped.

SD/LD/SL泵是可靠的自吸泵，马达全部的马力经由轴心完全转化为流量，此型泵广泛地使用於从化学药水循环或加工溶液循环到废水处理等各种用途，此型泵可自吸达20英呎，机械轴封是自我冷却的，经由抽送的溶液来冷却，可供应的不同结构材质及轴封使此种泵的用途非常多样化，依其结构材料的不同，其卧式设计的工作温度由75℃到90℃(167℉到194℉)，而且可处理绝大部份的各种溶液，SD/LD/SL是设计用於槽外或加工模组之用，SD/LD加入一个FRPP射出成型的脚座，脚架及泵到马达的外罩，没有螺栓或金属会接触到所抽送的溶液。

The organic/inorganic composites, as new materials that combine the inorganic phase"s rigidity,stability and the organic phase"s toughness and workability, have important theoretical and realisticsignificance in materials science. C_(60) is a brand-new holosymmetry spherical molecule with theunique physical and chemical property, displaying wide implications and applications of physics,chemistry, biology, materials science, medicine, electronics, and so on.

有机／无机复合材料集无机相的刚性、稳定性和有机相的韧性、加工性等诸多特性于一体的一类新型材料，具有重要的理论和现实意义。C_(60)是一个全新的全对称球形分子，具有独特的物理、化学性能，已广泛地影响和应用到物理、化学、生物学、材料学、医学、电子学等许多领域。

The main contents are: Status and prospects of micro/nano fabrication technology, semiconductor substrates, vacuum science and plasmas. Several unit processes of microfabrication like diffusion, thermal oxidation, ion implantation, optical and nonoptical lithography, etching, physical deposition, chemical vapor deposition and epitaxial growth. Process integration of these unit processes for example CMOS technique and silicon bipolar technique, microelectro mechanical systems and some nano fabrication technologies will be introduced.

主要内容有：微米/纳米制造技术的现状和展望、半导体衬底、真空科学和等离子体，各种单项微电子加工工艺，如扩散、热氧化、离子注入、光学和非光学光刻、刻蚀、物理淀积、化学气相淀积、外延生长等，以及各种单项工艺的集成技术，如CMOS技术和硅双极型工艺技术，并初步介绍微电子机械系统和纳米加工技术。

Personnel quality asks:(1) record of formal schooling of undergraduate course above;(2) chemical project / chemical craft / metallurgy material / pulverous metallurgy / coloured metallurgy / mineral treatment / organic chemistry / solid physics kind professional;(3) grade of professional during school class is medium reach above ;(4) have certain English / computer application foundation;(5) harmonious, communication capability is strong, group collaboration consciousness is outstanding;(6) obedient job arrangement, abide by work discipline;(7) male woman student is not restricted, the man student is first;(8) the person that working experience perhaps has paper to send souvenir to record is preferential consideration.

人员素质要求：（1）本科以上学历；（2）化学工程/化学工艺/冶金材料/粉末冶金/有色冶金/矿物加工/有机化学/固体物理类专业；（3）在校期间专业课成绩中等及以上；（4）有一定的英语/计算机应用基础；（5）协调、沟通能力强，团队合作意识突出；（6）服从工作安排，遵守劳动纪律；（7）男女生不限，男生优先；（8）有工作经验或者有学术论文发表记录者优先考虑。

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。