查询词典 at a heat
- 与 at a heat 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, preliminary FDS fire chamber to simulate the flue gas generated through the corridor adjacent to the room near the migration laws, an analysis of indoor air flow field and the movement of smoke layer, and through the simulation of fire scenes, in a simple form of visual dynamic display of the entire process of fire, in the simulation process to obtain more accurate fire-related parameters such as temperature distribution, gas flow and heat radiation, and analysis of simulation results through the fire chamber of the flue gas migration characteristics, results showed that the chamber in the absence of fire smoke control measures, the process of the spread of smoke filled the first chamber is at the top, with the passage of time, the proliferation of slowly downward until the entire chamber is full, and then through the corridor smoke quickly spread to the nearby chamber.
本文运用FDS初步模拟了腔室火灾产生的烟气通过毗邻的走廊向附近房间迁移的规律,分析了室内空气流场和烟气层运动状况,并通过对火灾场景的模拟,以简单直观的形式动态显示出火灾发生的全过程,在模拟过程中获得较准确的火灾相关参数,如温度场分布,烟气流动及热辐射等,并通过模拟结果分析腔室火灾的烟气迁移特性,结果表明着火腔室在无防排烟措施的情况下,烟气扩散的过程是首先充满腔室顶部,随着时间的推移,慢慢向下扩散,直至将整个腔室充满,然后烟气通过走廊快速向附近腔室蔓延。
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In order to get light and heat, moths kerosene boiling toward himself, and the extraordinary in the immortal, of the moment for eternity; honest snails refused to mediocrity, so in the hot sun shed tears and blood, the board leaves travel; goshawks in critical condition at the time do not want to be decadent, it has chosen towards the summit, and finally, it was a new lease on life.
为了得到光和热,飞蛾奋不顾身扑向滚烫的灯油,化平凡于不朽,化瞬间为永恒;憨厚的蜗牛拒绝平庸,于是在灼热的阳光下洒下泪与血,追求到了乘着落叶遨游;苍鹰不愿在生命垂危之时颓废下去,便选择了冲向峰顶,终于,它获得了新生。
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The plant ventilation status under different conditions is calculated with steady k-ε turbulence model. Results show that different surface has a different impact on natural ventilation. The ground surface constructed with some good heat-absorbing materials will have an enhanced surface effect. The surface effect is fully put into effect at the maximum outdoor windspeed of 1.5m/s.
在稳态条件下,采用k-ε湍流模型,计算了不同工况下的厂房通风状况,结果表明,不同的地表对自然通风的影响是不同的,厂房内的地面采用吸热性能好的材料构筑,会增强地表效应;地表效应得以充分体现的最大室外风速为1.5m/s。
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The machine had no use or not useful to add by a lot of products or products produced in workshop at all until heat-treating.
机加车间生产的许多制品或产品直到进行热处理之前是没有什么用处或完全没有用处的。
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The Company is responsible for people at high-frequency machine Through more than ten years of research and design, has been developed to create a series of applicable to all types of plastic / PVC, rubber, leather, Blister packaging high-frequency welding / fusing machine; trademark high-frequency equipment machinery, high-frequency metal weld / heat treatment machine ; high-frequency pipe machine; high-frequency synthetic resin preheating aircraft and other special plastics processing machinery.
本公司负责人在高周波机器上通过十余年的研究和设计,现已开发,制造出一系列适用于各类塑胶/PVC,橡胶,皮革,吸塑包装等高周波熔接/熔断机;高周波商标专用设备机械,高周波金属熔接/热处理机;高周波制管机;高周波合成树脂预热机以及其它特殊塑胶加工机械等。
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Multiple-paths hydrogen abstraction reactions of fluorine -with CH_3OH have been investigated at the MP2/6-311 ++ g level. The potential energy surfaces for H-abstraction reaction from carbon atom and oxygen atom were given respectively. The results indicate that there is only one minimum energy path for hydrogen abstraction from carbon atom, while multiple paths were found for hydrogen abstraction from oxygen atom. All the stationary structures, frequencies as well as PES sketch of all channels were given, in which the dominant channel is by a five-member ring transition state. The calculated heat of reaction is 170.62 kj/mol for channel 1, 119.41 kJ/ mol for branch channel 6. The results are in good agreement with experimental data.
以MP2/6-311 ++g水平上详细研究了氟原子与甲醇抽氢反应的多通道反应机理,得到了各条通道中涉及的驻点的构型和振动频率及其能量,给出了两张完整的反应势能面,结果表明,氟原子从C原子上抽氢时有一条明显的最低能量通道,而从氧原子上抽氢时要涉及多条分支通道和多个驻点构型,给出了各分支通道势能面示意图,结果表明以形成五元环状过渡态通道为优势通道,计算得到经途径1生成CH_2OH时反应放热170.62kJ/mol,经分支途径6生成CH_3O自由基时反应放热119.4 kJ/mol,此结果与实验值一致。
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In chapter three the performance and structure of components of oxygen probe were especially investigated. The Cr-Cr〓O〓 powder was overcome by treatments. The reason of occurrence of thermal peaks on the EMF curves was explained. A water glass based cement which high temperature insulation was around 10MΩ within 10 seconds at 1600℃ was developed for the use of oxygen probe. The effects of tip end thickness of ZrO〓 tube and amount of reference electrode on response time and thermal equilibrium in oxygen probe were investigated. The optimum tip end thickness of ZrO〓 tube and amount of reference electrode addition were determined. It is found that the heat transfer in oxygen galvanic cell is the rate limiting-step in the response process. The national oxygen probe WOS Ⅱ type was designed and manufactured. By three batches of industrial tests its specification reached the level of American Celox Ⅱ type oxygen probe.
在第三章中分别从参比电极、高温绝缘水泥、插接件等组元入手,着重分析了其性能和结构,开发出了适合于钢液定氧用的Cr-Cr〓O〓参比电极,解决了Cr-Cr〓O〓参比电极高温产生收缩问题,解释了电动势曲线产生峰值的原因;开发了适合于定氧测头使用的水玻璃基耐火水泥,其高温绝缘电阻在1600℃,10秒以内为10MΩ左右;同时对ZrO〓管头部厚度、参比电极量对响应时间的影响以及定氧测头中的热平衡进行了研究,得出了合适的ZrO〓管头部厚度和参比电极加入量,确定了氧浓差电池中的传热是响应过程的限速步骤;设计制造了国产WOSⅡ型定氧测头,进行了三次现场定氧测试,其技术指标达到了美国Celox型定氧测头的水平。
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A wildly varied season has left the Conseil Interprofessionnel des Vins d'Alsace 'relieved but satisfied', as damp and cool weather, summer heat and humidity finally led to fine weather at harvest.
季节变换不定,行业协会仍旧认为阿尔萨斯的葡萄酒让人放心,表现令人满意,因为潮湿凉爽的天气,夏季的高温和湿度最终带来了丰收期的好天气。
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BRENDA EKWURZEL: When we look worldwide, the percentage of Category 4 and 5 hurricanes or typhoons or cyclones, depending on the ocean basin they're in, has almost doubled in the past 30 years -- where we see a precipitous rise in ocean temperatures, which is directly related to the heat trapping gases that we've accumulated in the atmosphere at unprecedented levels.
布伦达。伊库泽:我们所看到的是:放眼全球,依靠海洋盆地而形成的4、5级飓风、台风和气旋的百分比在过去的30年里翻了一番。海洋温度陡然上升,这与吸收热量的气体有关。这些气体以前所未有的水平在大气中累积。
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Heat conducting oil tempt at heater outlet can be controilled with a precision of ±1℃.
加热器出口导热油温度可控制在±1℃以内。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。