微热

The characteristic of machined surface of high speed machining aluminum alloy 7050-T7451 is researched by micrographic experiments and analysis. The formation mechanics of machined metamorphism layer has been analyzed and studied. The dislocation-energy model in machined metamorphism layer was established and applied to explain the micrographic mechanics work-hardening using the thermo-mechanical coupling deformation theory and dislocation theory. The experimental results show that the interaction of high dislocation density effect on hardening is more remarkable than that of thermal stress in high speed machining.

利用显微观察方法对铝合金7050-T7451高速铣削加工的工件表面断面和不同深度的表层的微观形貌特征进行系统的研究，确定了高速切削加工铝合金7050-T7451的表面变质层深度为30～35μm；应用位错能量研究了高速铣削加工过程的热力耦合对变质层的影响机理，并通过微观形貌观察证明：与普通切削相比，高速铣削表层塑性变形的能量和位错密度更高；建立了位错密度的加工硬化的动力学模型，研究了加工硬化的热-力耦合形成机理；对微观裂纹的形成机理进行了理论分析，证明位错密度高的高速切削过程中较低速加工更容易产生明显的微裂纹，从分子级乃至原子级的水平进一步揭示高速切削加工表面变质层的形成特征。

Bench of closed circuit cooling tower that is composed of boiler, exchanger, orifice flowmeter, water pump, micromanometer, heat indicator and so on is established.

建立了由锅炉、换热器、孔板流量计、水泵、微压计、温度计等仪器设备组成的封闭式冷却塔实验台。

With the fast development of hardware, signal processing and digitizing technology, the applications of microseismic monitoring technology abroad become more and more. An applying research of this technology is coming up now in China.

随着设备硬件技术、信号处理技术和数字化技术的快速发展，微震监测技术的应用在国际上也越来越多，目前国内出现了对该技术的应用研究热。

Nannoplankton Extinction and Origination Across the Paleocene-Eocene Thermal Maximum - Rare plankton became extinct when atmospheric CO2 levels rose abruptly 50 million years ago, whereas those sensitive to ocean acidification caused by the rise survived.

全国首创超微化石及古灭绝-始新世最大热-绝种稀有浮游生物成了当大气二氧化碳水平崛起50000000年前而海洋酸化敏感所致崛起survived.authors：萨j。

The results indicate that only tungsten oxide grains are formed without sodium sulfate additions, while tungsten oxide whiskers with 0.20.3 μm in diameter and aspect ratio of 5-50 or tungsten oxide nanowires with 1030 nm in diameter and aspect ratio of 50200 are synthesized by some sodium sulfate additions on conditions at 180 ℃ for 1236 h. The phase composition of tungsten oxide whiskers is hexagonal tungsten trioxide. The whiskers/nanowires grow oriently through 〈200〉,〈002〉,〈202〉and〈100〉.

结果表明：未添加硫酸钠时，在180 ℃水热反应12~36 h只能得到氧化钨颗粒粉末，而添加适量硫化钠后，可制备出直径为0.2~0.3 μm、长径比为5~50的氧化钨晶须和直径为10~30 nm、长径比为50~200的氧化钨纳米线；氧化钨纳米线晶体结构良好，物相为六方晶系WO3；微/纳米氧化钨晶须/线主要沿〈200〉，〈002〉，〈202〉和〈100〉方向定向生长。

X-ray diffraction,transmission electron microscopy, BET surface area measurement and thermal analysishave been used to determine the characteristics of the nanopowdered silver prepared by chemical reduction with the polymolecular protectant.

用X -射线衍射、透射电镜、比表面测定和热分析技术，对从高分子保护化学还原法制得的纳米Ag粉，做了相关的测定表征；从表观比热的测定结果探讨这一亚稳微晶体系在加热过程和热处理后所发生的各种变化。

Thermal analysis technique is widely used in preformulation work with advantages of simplicity and effectiveness.

地红霉素肠溶制剂，特别是微丸，应包制隔离衣以提高药物的稳定性；热分析技术应用于药物与辅料相容性的研究，操作简便，不需特殊制样，是处方前研究的有效的技术手段。

It put forward that in landscape design the designer couldn't only pay attention to create a beautiful sight and prettify environment but also attach importance to make full use of the ecology functions of the landscape design and cooperate with architect design to improve building micro environment and mitigate the heat island domino effect to reach the positive action in energy saving of building.

并提出在园林设计中，不能仅仅局限于注重创造优美的景观，美化环境，还要充分发挥园林绿化的生态功能，与建筑设计结合起来，为改善建筑微环境，缓解城市热岛效应实现建筑节能起到积极的作用。

This product provides system of the spray end very effective stock bed, use 3 structures spray head, make filmy Bao Yi for pulverous grain or tiny ball, can use hot frit data, if hot candle makes filmy Bao Yi.

该产品配备非常有效的物料床底喷系统，并采用3层结构喷嘴，为粉末颗粒或微丸作薄膜包衣，并可用热熔材料，如热蜡作薄膜包衣。

In CMOS compatible materials, the seebeck coefficient of most metals is low while that of silicon is high.

在与CMOS兼容的材料中，大多数金属材料的塞贝克系数很小，而Si的塞贝克系数要大得多，因此本文制作的微机械热电堆采用p型掺杂多晶硅-n型掺杂多晶硅作为热偶材料，这样热电堆可以具有更高的响应率。

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