热化学的

Along with the development of modern science and technology, researching and developing new functional materials, which have special character in acoustics, optics, electrics, magnetics, elasticity and calorifics, have become the main direction of material research and development.

功能材料是一大类具有特殊电、磁、光、声、热、力、化学以及生物功能的新型材料，是信息技术、生物技术、能源技术等高技术领域和国防建设的重要基础材料，同时也对改造某些传统产业，如农业、化工、建材等，起着重要作用。

Physical method, including thermal evaporation and magnetic sputtering, and chemical coating method are applied to prepare organic-inorganic composite chromotropic film.

用热蒸发和磁控溅射的物理镀膜方法和溶胶凝胶化学涂布的方法相结合制备了有机和无机复合纳米光学变色薄膜。

Pyrolytic carbon coating and successive SiC matrix were respectively prepared by chemical vapor infiltration in T700 kind integer felt. The subsequent reactive melt infiltration method was adopted to densify it further and C/SiC composites were successively prepared. The microstructure and effect of interface on flexural properties were thoroughly investigated.

摘 要：以T700炭纤维准三维编织针刺整体毡为预制体，在炭纤维表面CVI预沉积热解炭涂层，利用化学气相渗透-反应熔体浸渗法制备C/SiC复合材料，观察材料的微观形貌，并探讨界面对弯曲性能的影响。

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。

It has the following characteristics such as chemical corrosion resistance, aging resistance, gasproof, climate-proof , antiflaming, convenient transportation, simple construction, good performance of sealing and high efficiency of heat transmission, etc.

它克服了传统方式的补口防腐，密封保温存在的不足，具有以下特点：耐化学腐蚀，耐老化，耐气候，阻燃，运输方便，施工简单，密封性能好，传输热效高等特点。

The macrographic investigation and the analyses on chemical composition, metallography and mechanical property at normal temperature of the damaged tube material of thermal recovery steam-injection boiler used for heavy oil recovery were carried out.

对稠油开采设备热采注汽锅炉破损炉管的材料进行了宏观检查、化学成分分析、金相分析、常温力学性能分析，并检测了给水水质，探讨了锅炉炉管在当前条件下的腐蚀机理。

Flow patterns,spatial distribution of temperature and chemical species,and growth rates during growth processes of GaN in planetary metalorganic chemical vapor deposition reactor are simulated three-dimensionally based on computational fluid dynamics theory.

基于计算流体力学在三维空间中模拟了水平行星式金属有机物化学气相沉积反应器生长GaN材料的流场、热场、反应物与生成物的分布以及材料生长速率等重要物理参数。

The basic monomeric unit should possess chemical and thermal stability and, upon polymerization, provide a product with unique properties.

单体单位应具备的基本化学和热稳定性，一经聚合，提供一个独特的产品性能。

The effects of high-energy ball milling including the fining and mechanochemical on the carbothermal reduction nitridation of alumina were investigated.

研究了高能球磨氧化铝的细化和机械力化学作用及球磨对碳热还原反应合成氮化铝的影响。

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。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。