查询词典 heat-resistant

About design programs of propylene tower post weld whole heat treatment, we have made analyses and compare from the various technical and economic aspects, and in vertical state of large pressurized vessel, we propose to adopt the internal combustion heat treatment method, in horizontal state of it, to adopt high temperature flue gas heat treatment method, and propose center combustion tube method as the future direction of technical developmnet insights.

摘要围绕丙烯塔焊后整体热处理的各种设计方案，从技术、经济等方面进行分析对比，提出对超大型压力容器，立置状态下宜采用内燃法热处理；卧置状态时宜采用高温烟气法热处理，并提出将中心燃烧管法作为今后技术发展方向的见解。

The article stated a number of issues which should be solved by commercial low-temperature Air-source heat pump,such as heat pump cycle of screw compressor with economizer, Two-stage screw compression system,double stage coupling heat pump,cascade refrigeration system.

文章阐明了带经济器的螺杆压缩机系统、双级往复压缩系统、双系统中间水路耦合系统、复叠式系统等商用低温空气源热泵系统需要解决的一些问题，对于更好地促进这空气源热泵技术的发展具有积极的意义。

In this paper, based on a pill-box window model with a conical-shaped alumina ceramic and Ansoft HFSS software, the relation of VSWR with various electrical parameters in the window is simulated; the effects of variations of the output window structure on electrical field intensity, microwave power flow and quantity of heat are analyzed; the electrical characteristics of frequency bandwidth, power capability and heat dissipation for the pill-box window with conical-shaped or disk alumina ceramic are discussed, which shows that, with a rational structure of the window with conical-shaped alumina ceramic, the output capability of microwave peak and average power may greatly be increased, the secondary electron emission may effectively be suppressed, and heat dissipation may become more uniform and be easier for cooling.

本文在前人工作的基础上，基于圆锥形陶瓷盒形输出窗模型，采用Ansoft HFSS三维计算软件的优化模拟，对该输出窗模型的驻波频率特性与各种结构参量的关系进行了优化模拟，分析了该输出窗片结构变化对其表面的电场分布，功率流分布、热量分布的影响，得出最优模型参数。并且探讨了陶瓷窗片的形状和几何结构对改善输出窗的频带特性、提高峰值功率和平均功率、抑制二次电子倍增方面的作用。

To investigate the response of plant growth and antioxidant system to changes of root temperatures, roots of six cucurbit plants were exposed to three different root-zone temperatures: low (14℃), middle (24℃) and high (34℃), while aerial parts of plants were maintained at the same natural ambient temperatures (23-33℃). The six cucurbit plant species could be classified into three groups with figleaf gourd and turban squash being I group (heat-sensitive but cold-tolerant), cucumber and melon being II group (heat- and cold-sensitive) and bitter melon and wax gourd being III group (heat-tolerant but cold-sensitive), i.e.

为了探究植物生长与活性氧代谢对根际温度变化的响应，以六种温度敏感性不同的瓜类作物为试材(组Ⅰ，黑籽南瓜与美洲南瓜，耐冷但热敏感型；组Ⅱ，黄瓜与甜瓜，冷敏感与热敏感型；组Ⅲ，苦瓜与冬瓜，冷敏感但耐热型)，分别将其根系置于不同的温度环境中：低(14℃)、中(24℃)与高(34℃)三种温度条件下，而地上部保持与外界空气相同的温度(23-33℃)环境中。

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Moreover, as the heat flux approach to CHF, numerous vapor mushrooms periodically extruded from the perimeter of fin array are observed. This mechanism will cause the dry-out situation in the central part of fin array. The closer fin spacing and longer fin length can provide larger heat transfer. However, the results also demonstrate that early decay on overall heat transfer coefficient as the fin spacing is closer or fin length is longer.

此外，间距0.5mm且高度4mm的鳍片阵列，其热传系数并不随热通量的升高而增加，在中高热通量区，其热传系数保持在一固定值，而其它低深宽比的鳍片阵列，热传系数则是随著热通量升高而增加，到了高热通量区，热传系数会有一最大值，之后会随热通量增加而递减。

Is a professional production of large-scale explosion-proof heaters, high temperature heat pipetemperature Electrical, mechanical and electrical cellular heat pipe dehumidification drying, central air-conditioning fan coil heater, heating tube electric reflow wave soldering wire,, shoe-making mechanical and electrical heat pipe, mold heating pipes, electric cigarette tube equipment, pharmaceutical machinery electric pipe, electroplating equipment, heating tube, heater Teflon, titanium heating tube, far infrared heating tube, quartz heating tube, ceramic tube heater, titanium system without Pb furnace, electric lap Limited, and Deputy States imports and compensation of thermocouple wire.

深圳市新宏大电热科技有限公司是一家专业生产大型防爆加热器、高温型模温机电热管、蜂巢式除湿干燥机电热管、中央空调风机盘管加热器、波峰焊回流焊电热管电热丝、、制鞋机电热管、模具加热管、卷烟设备电热管，制药机械电热管、电镀设备加热管、铁弗龙加热器、钛加热管、远红外电热管、石英电热管、陶瓷电热管、钛制无铅锡炉、电热圈的有限公司，并代理各国进口热电偶及补偿导线。

In the paper, we investigate, respectively, the unsteady transport properties of heat and moisture in enclosure under constant wall heat flux and constant wall temperature when porous particles are small and Darcy number is lower, the effect of conductivity ratio, heating conditions and other parameters on the heat transfer rate of enclosure when particles are larger and Darcy number are higher.

并分别对多孔颗粒较小时的低Da数封闭腔内的非饱和渗流与传热，及颗粒较大的高Da数封闭腔内的非饱和自然对流行为进行了数值模拟，研究了低Da数时湿分与热量在恒热流与恒壁温条件下的非稳态传递特性，高Da数时封闭腔的传热与流动特性、达西效应以及导热比、加热条件等对空腔传热系数的影响。

Among all of the cooling technologies, the impingement cooling is the most potential one to enhance local heat transfer coefficient. The impingement of the jet forms high speed airflows on the cooled surface. These airflows can be used to improve local heat-transfer conditions significantly especially in the area with very high heat flux and temperature.

在所有提高传热的技术中，冲击冷却对于提高当地的传热系数具有最大的潜力，其冲击所形成的高速气流，极大的改善了当地的换热状况，特别适用于局部高温的地区。

Then the dynamic mathematical model for the whole unit of air source heat pump is founded with the parts of compressor model, airside heat exchanger model under frosting, heat exchanger model of water side and electronic expansion valve.

将压缩机模型、空气侧换热器结霜模型与水侧换热器模型、电子膨胀阀模型有机地结合在一起，构成了整个空气源热泵冷热水机组的动态模型。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。