查询词典 cooling

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

Our equipment is equipped with a water cooling system and automatic segmentation system and letoff system for choosing to use the polymer-coated with hot melt Adhesive curing time is 10-38, 15s, left, or, in a production environment normothermic cooled down the time required for this to be greater than standard time, especially in the Division of semi-finished products is cascade linescut, between the temperature so that it is difficult to give off the accumulation of natural cooling curing

我们的设备装有水冷系统和自动分割系统以及收卷系统供选择使用）覆膜用热熔胶的固化时间为10～15s左右、在生产环境常温下自然冷却所需的时间，要大于这个标准时间，特别是半成品在分割前是层叠卷绕的话。相互间温度积聚难以散发，使自然冷却固化

From the metallograph, the grain size of the room-temperature water-cooling clasps was known to be smaller than that of the air-cooling clasps.

Ti75作为首次引入的卡环制作的新型钛合金，表现出良好的抗疲劳性能，是一种合适的牙科铸造合金。

In this thesis, we intended to eliminate the a -Fe phase by adjusting the composition and the cooling velocity. The effects of Sm content, cooling velocity and the additions of Nb and Zr on the microstructures of Sm-Fe alloys and magnetic properties of Sm2Fe17Nx were studied. Effects of nitrogenation techniques on magnetic properties were also studied.

本文力图通过控制合金成分及冷却速度的方法来消除Sm-Fe合金中初生的α-Fe相，系统地研究了Sm含量，凝固速度及Nb和Zr的添加对Sm-Fe合金微观组织的影响，及合金成分和氮化工艺对Sm_2Fe_(17)N_x磁性能的影响。

Producer asserts that this passive radiator ensures the complete noiselessness cooling, and the temperature of video chip in this case is reduced to 63 degree Celsius against 67 degree Celsius with the use of standard cooling system radeon x1950 pro.

生产者声称这种被动散热器，保证完成noiselessness冷却视频芯片，气温在本案降至67摄氏度63摄氏度对同冷却系统使用标准真实感x1950亲。

Its features includes: faster molding; larger molding area with maximum length of 49 inches; easy to replace die and sheets; demould by quacking; secondary patrix, two –way temperature control; automatic diagnosis; extra powerful cooling wind; cooling water module plate.

本机特点主要有：成型速度快；成型面积大，最长可达到49寸；更换模具、片材方便；震动脱膜；二次上膜；双向控温；自动诊断故障；特强冷风；冷水模盘。

It can be used as dispersant in pour-cooling water if iron and steel plants, and also used together with organic phosphonate and zine salts in circulation cooling water with high hardness and high alkality.

用于钢铁厂淋洗的冷却水，防止氧化铁、化锌和泥沙沉积，以及用于高碱度循环冷却水中与有机膦酸盐、复配的阻垢缓蚀剂。

Although newer plants recirculate water or use dry cooling, once-through cooling methods are the most common technology in use.

虽然新工厂分发水或使用干冰冷却，但是通过冷却的方法是最常见的技术。

This configuration is flexible and steady and can simultaneously produce the cooling and repump light for 40K and 87Rb trapping and cooling experiment.

该装置可同时产生冷却40K和87Rb原子的冷却光和再抽运光，结构紧凑，工作稳定。

Then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

该装置可同时产生冷却^40K-^87Rb原子的冷却光和再抽运光，结构紧凑、工作稳定。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。