查询词典 heat

Heat treatment technique of forged grade E steel coupler yoke has been studied in this paper, in which the real-time temperature measuring method is utilized to determine the reasonable heat treatment regulation for mass production of forge.

本文研究了锻造E级钢钩尾框的热处理技术，采用实时测温技术确定了锻造E级钢钩尾框批量生产的合理的热处理工艺规范，并通过计算机模拟优化方法确定了E级钢材料的最佳热处理工艺参数。

When joining and welding on steeliness tubeplate and red copper heat exchange tube in the tubular heat exchanger,whether we adopt welding way or not expanding,evermore there are leakages and seepages as some troubles.

在管壳式换热器钢制管板与紫铜换热管连接时，无论采用焊接还是胀接，经常出现的问题是泄漏和渗漏。

Over the years, obsorbing the advanced technology, the Association has developed the straight line drawing machines, wet drawing machines, upside down style wire drawing machines, spool take-up, pay-off unit, wheel heat treating winder, heat treatment take-up, pay-off unit, strander machines, pre-treatment line machines.

多年来，吸收先进的专业技术，已研制开发了具有国内领先水平的直进式拉丝机，水箱拉丝机，倒立式拉丝机，收放线机组，工字轮热处理收线机，热处理收放线机组，预处理作业线，管式股绳机和成绳机。

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。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。