吸热

The whole sintering process of SHS converter fettling materials can be divided into three steps. The first step is the decomposition reaction of carbonates and sodium nitrate, which is an endothermic reaction. The second step is the SHS reaction, i. e. thermite reaction, the metal of Al reacts with CO〓, O〓, NO〓, Fe〓O〓 to form Al〓O〓. The speed of thermite reaction is very quick, and accompanied with large amount of heat emission and temperature rise. The third step is the reaction of spinels formation. The Al〓O〓 produced by SHS reacts with MgO to form spinels.

整个SHS补炉料的烧结过程分三步进行：第一步为碳酸盐、硝酸钠的分解反应，属于吸热反应；第二步为SHS反应即铝热反应，金属铝粉与CO〓、O〓、NO〓、Fe〓O〓等反应生成Al〓O〓，反应速度很快，并伴随有巨大的放热和温度升高；第三步为合成尖晶石的反应，SHS反应产物Al〓O〓与MgO反应生成尖晶石。

Mainly in aspination Geld derivation of non-polar molecule mixed absorbheat noheat or at the time of the system, and for a strong system of polar molecules, fierce an hydrogen bond formation, mixing, when heat release, the results do not apply to deduce the packaging business card printing and membership card making ink.

主要是在吸取赫尔德推导的非极性分子混合时无热或吸热的体系，而对于强极性分子构成的体系，凶为台氢键形成，混合时会放热，则该推导结果就不适用包装制卡和会员卡制作油墨方面。

Numerical tests are also conducted to investigate the microphysical effects to the mesocale convective systems. The evaporation of raindrops can strengthen the surface "cold pool" to decease the temperature of rainfall center. The condensation of vapor can lower the air pressure and increase the convergence and updraft so that the convective echo develops stronger. The melting of graupel can cool the air to restrain the convective activity. The falling of precipitation particles can increase the downdraft and induce the outflow nearly the surface. The effect of condensation is the most important among all the microphysical processes. It can change the whole structure of cloud system.

微物理过程对对流系统发展和维持有重要作用：强降水的雨滴蒸发过程会加强"冷池"效应，同时增强了雨带南侧原有的地面中尺度辐合线；凝结潜热在低层诱发了与回波相应尺度的中尺度低压，增强了辐合和上升运动，促进对流发展；霰的融化吸热通过冷却大气会不利于气压下降、气流辐合抬升等过程，降低对流不稳定能量，减缓对流发展；重力拖曳使气块冷却降温，降低对流不稳定能量，并且使低层的气压升高、气流辐散，在近地面附近产生出流，加强地面中尺度辐合线的强度。

Water has the function of absorption of heat, gush water also can drop in temperature.

水有吸热的功能，喷水也可降温。

ASI sandstone belongs to a class of environmentally friendly stone material. It is a light weighted durable product is free from toxins and radiations, non-reflective, resistant to weathering, fading, damping effects, has sound and heat absorbent qualities that is easy to work with. ASI obtained AAA quality rating, the highest rating obtainable in China, from the official China Industrial Material Standard Bureau, and has also been assessed and obtained product quality certification from Amdel laboratory in Australia

ASI 砂岩是一种生态环保石材，其产品无污染、无辐射、无反光、不风化、不变色、质轻、防湿、防滑、透气、吸音、吸热、保温、耐磨、坚固、轻便、可塑性强等卓越特点，通过了澳大利亚权威认证机构 AMDEL 及中国建筑材料工业局的"AAA"质量评定，其各项物理检测数据均符合建筑装饰要求，是世界公认的顶级砂岩品牌的形象代言。

Therefore, the former solar air heater was proved to be able toabsorb more radiant heat energy from the sun to increase the heat convection between the absorber flat plate and the air.

该集热器可增加对太阳辐射热能的吸收，加强吸热体和空气的对流换热。

A chemical reaction accompanied by the absorption of heat .

吸热的化学反应过程。

The ball milling from 1 hour to 5 hours obviously accelerated the carbothermic reduction of ilmenite.

7球磨过程可以大幅度减低FeTiO〓-xC-xFe体系中Ti〓O〓和Ti形成的吸热峰峰值温度。

Numerical simulation results show that the fluid flow in Lost Foam Process was different from that in an ordinary green sand mold, the molten metal flow forwards in a circular-arc shape from the ingate, meanwhile, the nature of the gating system influenced the filling process notably. As the polystyrene pattern decomposition has a strong quenching effect on the flowing metal fornt, a high temperature gradient was formed at the flowing metal front, this resulted in the dropping of temperature of the metal to the liquidus temperature quickly and decreased the flowability of molten metal, the temperature distribution in the metal behind, however, was even. The properties of the pattern and the coating affected the temperature distribution remarkably.

从内浇口开始，金属液呈放射状均匀向前充填，同时浇注系统性质显著影响金属液充型过程的流场；由于聚苯乙烯模样气化吸热对金属液的激冷作用，在金属液流端部区域产生很大的温度梯度，使得端部区域金属液很快降至液相线温度，降低了金属液的充型能力，而后续金属液中温度分布则比较均匀，模样性能、涂料性能显著影响这一温度分布特点。

The results indicated that control of water in the reaction system was very important to the formation of lactide.

结果表明，所选择的各模型反应为吸热反应且近似可逆，水的控制对丙交酯的形成很重要。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。