查询词典 heat spot

In order to investigate the effect of contact resistance on nugget growth and heat source distribution, an axisymmetric two-dimensional finite element model was developed to simulate the spot welding of aluminum alloys.

为了研究铝合金点焊时接触电阻对点焊熔核形成和焊接热源分布的影响，本文采用二维轴对称模型，用有限元法对铝合金点焊过程进行了数值模拟。

A resistance spot weld is made by a combination of heat, pressure, and time.

电阻点焊是由结合热，压力和时间。

Over time, you will often find that metal flat irons will not heat evenly; that is, spots on your iron will be cool while another spot is warm.

随着时间的推移，你会经常发现，金属平板的铁杆不会热均匀，这就是景点的铁将冷静而另一点是温暖的。

The poor connection of all the NCU1 network controllers of your company's BA system has made it impossible to have an on-line control of the No.2 recycling pump of heat exchanger, the geothermic pump, the pump motor, the ventilation motor, the grill motor, and other equipment, and to read the feedback values of the on-spot breakdowns and conditions.

贵司BA系统NCU1网络控制器全部离线，造成热交换器2#循环泵、地热循环泵、水泵电机、通风电机、格栅电机等设备无法在线控制，不能读取现场故障、状态等反馈值。1#－5＃生活水泵、生活水泵运行时间统计、锅炉系统供回水压差、供水温度、回水温度、回水流量等数值无法显示运行状态及现场流量值数据。

One beauty spot of Wuhan city rolls out disappear heat noctivagant activity, among them outdoors tent bivouac has not to become the regulation of article: Same in tent, all want collocation of male and female.

武汉市一风景区推出消暑夜游活动，其中户外帐篷野营有一条不成文的规定：同一个帐篷里，均要男女搭配。

Perhaps the biggest blow came when the Lakers swiped Crittenton at No. 19 -- one spot before the Heat. Pfund said that as the draft developed two of his targets were available at No. 20: Smith and Cook.

可能最大的打击是19位时湖人选在了Crittenton ，随着选秀的发展，热火20位的可供选择是Smith和Cook。

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发，假设当电子增值210倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q－YAG激光器（波长1064nm，532nm，355nm，脉宽10ns），靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随著波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

Between these sickly shrubs grew a scanty supply of garlic, tomatoes, and eschalots; while, lone and solitary, like a forgotten sentinel, a tall pine raised its melancholy head in one of the corners of this unattractive spot, and displayed its flexible stem and fan-shaped summit dried and cracked by the fierce heat of the sub-tropical sun.

在这些病态的矮树之间，还长着一些大蒜，蕃茄和大葱，另外还有一棵高大的松树，孤零零地，象一个被遗忘了的哨兵，伸着它那忧郁的头，盘曲的丫枝和枝头扇形的簇叶，周身被催人衰老的西北风吹得枯干龟裂。

These problems that puzzling student and parent put forward, became the heat of spot discussion.

这些困扰着学生与家长的问题一提出，就成了现场讨论的热点。

This paper discusses the source of heat for spot welding and the theory of diffusion welding of brass and red copper.

探讨了点焊热量的来源和黄铜与紫铜的扩散焊机理。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。