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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A Lithium-Bromide absorption refrigerating machine is designed using inclined fin tubes as heat transfer elements for absorber and using other corresponding heat transfer enhancement elements for the other heat exchangers. Comparing with the machine of using bare tubes, this unit can save bronze by 19%, steel by 28%, space by 36%. And a lot of operating expenditure can be reduced at the same time.
用斜槽管作为吸收器中的传热管,并在其它传热部件中采用相应的强化传热元件,设计了一台溴化锂吸收式制冷机,与全部采用光管的机组相比,节省了19%的铜材、28%的钢材,整体体积减小了36%,同时还节省了其它费用,显示出较好的经济效益。
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Calculated with Clapeyron - Clausious equation, the isosteric heat of adsorption Qst (adsorption heat at certain coverage, which is defined as the numbers of adsorbed melecules per unit cell) and average isosteric heat of adsorption Qst^*(the average adsorption heat with various coverage determined in a certain temperature range) were obtained for the adsorbates investigated.
根据Clapeyron-Clausius方程,处理吸附等温线,得到不同覆盖度C(C=被吸附分子数/晶胞)的等量吸附热Qst(一定覆盖度C时由Clapeyron-Clausius方程计算的吸附热)及平均等量吸附热Qst^*(一定温度区间里等量吸附热Qst的平均值),以及Qst^*与沸点蒸发热△Hv的差值△H1(定义为相互作用强度△H1=Qst^*-△Hv)。
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The tripolar structure SST anomalies over the North Atlantic, which also appears at the interannual scale with a spectral peak at 3—4 years, are mainly resulted from the barotropic driving of the NAO like atmospheric forcing, and thermal process plays a dominantrole in this process. When the NAO is strong, the westerly weakens over the midlat itudes; both the sensible and the latent heat flux release from the ocean tend to decrease, which warms the ocean and leads to positive SST anomalies. Over the sub polar region including the Labrador Sea, a stronger NAO is associated with a deeper Icelandic Low; the high latitudes originated colder air then blows over the ocean surface, the air-sea temperature difference become larger, and the se n sible heat flux loss from the ocean increases, which subsequently leads to colder SST anomalies.
分析表明,模式中三核型SST异常的产生,主要来自大气的强迫,NAO增强,中纬度大洋上的西风减弱,海洋感热和潜热通量损失减少,中纬度大洋得到的净热通量增加,导致SST出现正距平;在包括Labrador 海在内的副极地大洋,NAO增强、冰岛低压加深,气旋性环流增强,来自高纬度的冷空气吹过洋面,海气温差加大,大洋的感热通量损失增加,SST降低。
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The pilot study shows that the ammonia dissociation/synthesis reaction is inherently free of any potential side reaction problems, and also offers phase separation of products. The carrier of heat store is liquid. and is very interesting for long-term storage as it can be carried out at room temperature with no energy losses, Its theoretics energy storage density reachs 66.5kJ/mol, which outclasses sensible or latent heat storage. In comparison to other thermochemical energy storage, ATCES needs lower temperature in endothermic reaction(only 650℃), but It can produce over 550℃ high temperature stream in exothermic synthesiser. Furthermore, the heat store/recovery can change with adapt to the heat source/load automatically, and offers coninuous(24 h) production of heat, These advantages will see a rapid increase in the adoption of large-scale concentrating solar thermal power generation.
初步研究表明:采用氨基储能体系,储/释过程无副反应,且储能介质能自然发生相分离;储热载体为流体,并可在室温下长期无热损储存,理论储能密度达66.5kJ/mol,远高于显热或相变蓄热;与其它热化学储能相比,吸热反应温度低,仅需650℃,而放热反应可产生500℃以上的高温,能量的储/释流量可随热源/负荷自适应变化,且可全天供热,更适合作为聚光式大规模太阳能热力发电中的能量储存系统。
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Based on the detailed study of seismic tomography image in South China, and according to the geotectonic environment and shape and heat of asthenosphere upwelling, we divided the structure of lithosphereasthenosphere at the Mesozoic upper mantle of Eastern China into three types.(1)Continental platform area (North China platform and Yangtze platform): asthenosphere upwelled along paleorift; over the plume head, the granitic rocks of crust and mantle mixed and correspondingly, Au, Cu, Mo, PbZn, etc. mineralizationconcentrated regions were formed; and at the steep contact belt of asthenosphere and the thick area of lithosphere, mediatebasic complex was formed.(2)Central area of fold zone: asthenosphere was "recumbent" at suitable depth, with adequate heat and in a great extent; by heat conduction, the interior of partial crust remelted, and the crustsource granitic rocks, and correspondingly, W, Sn and rare elements mineralizationconcentrated regions were formed.
在深入研究华南地震层析成像的基础上,按照大地构造环境和软流圈上涌形状和热度,将中国东部中生代上地幔中岩石圈软流圈构造划分为3类:(1)陆台区,软流圈沿古裂陷上涌,其柱头上方形成幔壳混熔花岗质岩及相应Au、Cu、Mo、PbZn等矿集区,并于软流圈与岩石圈厚区之陡接触带形成中基性杂岩及相应Fe矿集区;(2)褶皱带中心区,软流圈在适当深度、热量充足、较大范围内&平卧&,因热传导而致使地壳内物质部分重熔,形成壳源型花岗质岩及相应的W、Sn、稀有元素矿集区;(3)褶皱带边缘区(大兴安岭南部及华南南缘),在软流圈上涌柱上方形成幔源或幔壳混熔的花岗质岩,相应为Cu、Au、PbZn、Mo、Ag矿集区。
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By timely and spatially controlling the physical and chemical characteristics of the fuel at both port injection stage and in-cylinder direct injection stage, HCCI/DI stratified compound combustion is developed to combine the advantages of HCCI and conventional DICI on cycle-to-cycle basis and achieve clean and efficient combustion at full load ranges without misfiring and knocking.Firstly, three types of dual fuel including n-heptane/diesel, iso-octane/diesel and ethanol/bio-diesel a...更多re utilized to investigate the combustion and emission characteristics of HCCI/DI stratified compound combustion. The experimental results indicate that n-heptane/diesel HCCI/DI combustion presents a three-stage heat release consisting of HCCI low temperature heat release, high temperature heat release and diesel diffusive combustion.
本文提出的基于燃料设计与管理的HCCI/DI分层复合燃烧是一种将HCCI燃烧和传统缸内直喷压燃融为一体的新型燃烧方式,通过对燃料理化特性的设计和在预喷与直喷阶段从时间尺度和空间尺度上对均质和非均质混合气制备过程的控制和管理,在发动机的一个工作循环中将均质混合气的HCCI燃烧和非均质混合气的DICI扩散燃烧相融合,彻底消除了HCCI燃烧在小负荷失火和大负荷爆震的弊病,实现了发动机全负荷范围内的高效清洁燃烧。
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This paper aimed at the Daqing region based sauce, sweet paraffin base crude oil, the main tasks and objectives will be: 4 million tons / year, 330 days a year, total starts, top of the tower to take heat, the first mid-back to take heat, second heat to take the middle back the distribution of 5:2:3, based on the given crude true boiling point distillation data and products Engler distillation data to calculate the product of various complex decision to cut the program data to calculate the product yield, full-tower heat balance calculation, rendering the whole tower of steam , liquid load distribution.
本文设汁主要针对大庆地区低硫石蜡基原油,主要任务及目标为:400万吨/年,按每年开工330天计,塔顶取热、第一中段回流取热、第二中段回流取热分配为 5:2:3,依据所给的原油实沸点蒸馏数据及产品的恩氏蒸馏数据,计算产品的各物性数据决定切割方案,计算产品收率,进行全塔热平衡计算,绘制全塔汽、液相负荷分布图。
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On the basis of analyzing the thermodynamic properties and cycle performance of pure refrigerants, the paper optimizes their concentration while screening NARMs used in wide variable-temperature heat source. The practical applications of NARMs, such as R22/R123, R123/R125 etc., are studied in geothermal heat pump, seawater heat pump, air dehumidification system and dual-evaporator domestic refrigerator. The results show that the NARMs can match the limitation of a pinch point at the air-side exit of heat exchanger, reduce the unreasonable heat transfer temperature difference, and improve the COP of system. The above conclusion is proved by measuring the cycle performance of R12, MP39 and R11/R22 in a two-evaporator experimental system.
其次,本文在工质热物性和变工况循环性能分析基础上,筛选和优化了适应外部大变温热源约束条件的非共沸混合工质及其浓度配比;讨论了相变温差较大的非共沸混合工质(如R22/R123、R123/R125等)在地热源供热热泵、海水源供热热泵、双门冰箱和热泵空气除湿的应用,计算分析表明制冷与热泵系统采用相变温差较大的非共沸混合工质有利于弱化传热过程的&窄点&的约束,减小传热过程中的不合理温差,提高系统COP值;通过建立双蒸发温度循环系统试验装置,对R12、R22/R11和R22/R152a/R124循环性能进行实验研究,结果与理论分析一致。
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In order to identify the proteins which are responsible for the better fruit set in heat-tolerant variety than in heat-sensitive one, we used two dimensional electrophoresis systems to separate isolated proteins from developing anther and looked for the proteins up-/down-regulated in heat-tolerant variety. In doing so, two selected cultivars, CL5915, the heat-tolerant, and L4783, the heat-sensitive, were grown at the same time in a phytotron at both 30/25℃ and 25/20℃. The proteins isolated from developing anthers of heat-tolerant variety grown in 30/25℃, were subtracted to remove the common genetic background.
因此为了鉴定出在高温逆境下与番茄著果率提升有关之蛋白质体,我们利用亚蔬中心所提供耐热番茄(Solanum lycopersicum, formerly Lycopersicon esculentum)品系CL5915与不耐热品系L4783,藉由控制二品系间生长温度之差异(热逆境30/25℃与一般生长环境25/20℃),在雄蕊发育早期利用蛋白质体学技术分析可溶性蛋白质,比较并扣除共有之遗传背景之蛋白质后,将二品系间具有差异的可溶性蛋白质筛选出来,并进一步利用LC-ESI MS/MS进行蛋白质身份鉴定。
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Heat pump water heater series are: commercial heat pump water heater, home heat pump water heater, heat pump swimming pool machine; air-conditioning series has: window air conditioners, Split wall-mounted air conditioner, cabinet type air-conditioning, commercial air conditioners and so on, at the same time the introduction of The United States technology, specializing in central air-conditioning energy saving technology development, licensing changlingRB developed its heat recovery unit, with the exception of a common central air-conditioning refrigeration, heating capacity, it can also provide 24-hour hot water, truly (refrigeration, heating, hot water) three with one machine.
热泵热水器系列有:商用热泵热水器、家用热泵热水器、热泵泳池机;空调系列有:窗式空调器、分体壁挂式空调器、柜式空调式、商用空调器等,同时引进美国技术,专门从事中央空调节能技术开发,其研制的changlingRB牌热回收机组,除具备普通中央空调制冷、采暖的功能外,它还可以提供24小时生活热水,真正做到一机三用。
- 推荐网络例句
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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.
主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。
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Male cats normally do not need aftercare with the exception of the night after the anesthetic.
男猫通常不需要善后除了晚上的麻醉。
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Its advantage is that it can be used in smaller units.
其优点在于可以在较小的单位中应用。