查询词典 heat-resistant

The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.

本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。

The results show that the urban heat island area of Beijing city is strip shaped and ring shaped. Lower elevation and smaller slope are favorable to form the urban heat island, and the various land cover types have dramatically different thermal properties.

结果表明，北京市热岛分布具有环状和带状分布特征，高程较低处和坡度较小处更容易形成热岛中心，不同地表覆盖类型的热特征具有显著的差异。

The concept of ischemic tolerance is established on the base that sublethal heat shock or low-dose ischemic injuries produce tolerance in cells and tissues to subsequent exposure to heat or ischemic injury.

缺血耐受的概念是在亚致死性热休克和低强度缺血损伤可以诱导受其打击的细胞或组织中产生缺血耐受的试验基础上形成的。

Stir sugar and vinegar in small saucepan over medium heat until sugar dissolves; remove from heat.

将糖和醋倒在小炖锅里用中火加热，直到糖完全溶解后将锅移开。

The effects on superheated vapor heat transfer are to be analyzed such as heat flux and mass flow rate etc.

实验结果表明，在外部条件相同时，环形狭缝通道内的过热蒸汽的换热系数随着间隙的减小而增大。

Thus, the heat exchanger having a specified heat exchange capacity and firmly supportable on a base can be provided.

因此，可提供具有指定热交换能力和可牢固支撑在底部上的热交换器。

Chemical heat treatment by changing the workpiece surface chemical composition, structure and properties of metal heat treatment process.

化学热处理是通过改变工件表层化学成分、组织和性能的金属热处理工艺。

I have a dream that one day even the state of Mississippi, a state sweltering with the heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice.

我梦想有一天，我的四个孩子将在一个不是以他们的肤色，而是以他们的品格优劣来评判他们的国度里生活。

Heat treatment control is the important tache to get stable heat treatment quality.

热处理操作控制是获得稳定的热处理质量的重要环节。

Based on the heat and moisture transfer theory, establishes the quasi three-dimensional and simplified model of heat and mass transfer between air, tailrace water and surface of tailrace tunnel using the lumped parameter model.

在水－空气热湿交换理论的基础上，采用集总参数法建立了无压尾水洞引风过程空气与尾水及洞壁面之间进行热湿交换的准三维数值模型及其简化模型。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。