查询词典 heat-insulating layer

Experiment and flow visualization are conducted in a water-filled cavity which cover the range of Ra=1×10〓----6×10〓 and Pr=3. 3---6. 5. Similarity theorem is applied in analytical investigations. And core region stratification effects to heat transfer are studied. By using scale analysis, temperature and velocity profiles in turbulent natural convection boundary layer are obtained. The results reveals that for turbulent natural convection in enclosures, the bulk of the cavity fluid is essentially statement with thermally stratified temperature and the only substantial motion is that in the boundary layer along four side walls.

在实验方面，作者在高Ra范围内（Ra〓=1×10'~Ra〓=6×10〓，Pr=3.3~6.3）对封闭空间实验台以蒸馏水为介质进行了换热实验与流动显示；在理论分析方面，作者采用相似原理导出了分析解；研究了核心区温度分层规律及其对换热的影响；另外还运用尺度分析法探讨了紊流自然对流边界层温度与速度分布。

The centrifugal force and content of CaF〓 in thermit can affect the surface roughness of stainless steel layer. It is important to heat the thermit before ignition to decrease the Al content in stainless steel layer.

经过反复的实验发现，制备低铝量的18—8不锈钢内衬复合钢管的修正配方为：〓采用适当的预热温度和离心力下，按上述配方配制的铝热剂经适当调整后可以制备出成分满足要求、内表面光滑、结合强度高的复合钢管。

Based on the heat balance equation of the vegetation canopy layer and the assumption that its short wavelength absorptance, long wavelength emissivity, heat or moisture transfer coefficient, and bulk stomatal resistance are random, uncorrelated variables with normal distribution densities, the theoretical modeling for IR radiance statistics of vegetation canopy surface is presented by Monte Carlo simulation, with the surface radiative temperature statistical distribution given.

根据植被层能量热平衡方程，选取植被短波吸收率、长波发射率、热与水汽传输系数和气孔阻力为独立的随机变量，并假设它们均服从正态分布，利用Monte－Carlo方法，模拟计算了植被表面红外辐射的统计特性。

The seasonal variation of the upper layer heat content is controlled jointly by both the dynamic process and the net heat flux from the sea surface, and it can be mainly attributed to the air-sea interaction.

由动力过程和海表净热通量共同控制，2种作用都有明显的季节变化特征，并且随区域的变化两者贡献有所变化；西南季风爆发前，上层海洋热含量最大值的出现，是之前几个月动力作用和海表净热通量共同加热的结果。

The Earth possibly is one by occupies the major part material stably the counter-flow inner layer as well as occupies the few parts the counter-flow outer layer to be composed, the former is constitutes the Earth quite stable movement, the attraction, the magnetic field and so on the macroscopic phenomenon foundation; The latter constitutes the Earth most to be rich in the change the beautiful semblance, such as: Land, islands, volcano, earthquake, plate movement and so on nature environment with each kind of great phenomenon, eliminate this this also are decide the Earth for the perfectly round spheroid basic reason, because the internal heat circular reactions is from starts, the huge energy finally becomes the Earth good fortune a beautiful rich life the star.

地球可能是一个由较稳定占绝大部分物质的对流内层以及占较少部分的对流外层组成，前者是构成地球比较稳定的运动、引力、磁场等宏观现象的基础；后者则构成地球最富于变化的美丽外表，诸如：陆地、岛屿、火山、地震、板块运动等等自然界环境与各种伟大的现象，除此这也是决定地球为浑圆球体的根本原因，因为内热循环反应是从一点开始的，巨大的能量最终把地球造化成一颗美丽的富有生命的星球。

Results show that the laser cladding layer is divided into the cladding layer, melting zone and heat-affecting zone.

结果表明：激光熔覆区在微观结构上分为熔覆层、熔化区和热影响区。

Heat treating technology development closely connected with three large scale technology andequipment importing is reviewed, and the fbatures of hcat treating specialization and large scale production areanalyzed. Main tcchnical progresses ofgas carbonitriding instead ofliquid cyaniding, improvement ofcontrol accuracyin gear carburizing, improvement of carburizing layer unitbrmity by preoxidation, increment of raw gas purity incontrolled atmosphere use of fbrging wastc heat cooling control for normalizing,...

回顾我国汽车工业热处理技术发展与3次大规模技术引进密切相关，分析了汽车工业热处理技术发展专业化，规模生产的特点，列举了10年来在气体碳氮共渗取代液体氰化；齿轮渗碳控制精度提高；采用预氧化工艺提高渗碳层均匀性；解决可控气氛中原料气纯度以及锻造余热控冷正火和等温正火技术的应用等方面嵢〉玫闹饕删停岢龈咝＝⑷却砩璞缸ㄒ档冉ㄒ椤

A few days ago, those who pass assess of netizen elect by ballot, expert is layer upon layer choose, first " business of network of service of 10 great lives " selection 10 powerful businessmen give heat finally, 10 lives such as praedial, all-round victory serve hotel of 7 days of meal of home of grandmother of cross-strait coffee, Zhejiang, chain, 21 centuries network business is picked laurel.

日前，经过网友票选、专家评定的层层筛选，首届&十大生活服务网商&评选的十强商家最终出炉，两岸咖啡、浙江外婆家餐饮、7天连锁酒店、21世纪不动产、满堂红等10家生活服务网商摘得桂冠。

The model of heat conduction caused by friction spark can be regarded as forced convection heat conduction issue of grazing spheriform which is outside of planar stable state boundary layer,so the mathematics analytic formula is presented and a few measures for preventing friction spark.

摩擦火花传热模型可看做是二维稳态边界层外掠球体的强制对流传热问题。

It was found that in the heat melting process of the ice layer, the ice melting rate history undergoes 3 stages:unmelting stage, accelerating melting stage, and decelerating melting stage, they are affected obviously by the heat load. The energy utilization effect in the ice melting process may be improved using variable heating.

研究表明，冰层热融过程中，融冰率变化经历未融、融化加速和融化减缓3个阶段，每个阶段受热负荷作用影响明显，若采用变负荷加热，可更有利于融冰过程能量利用的综合效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。