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过冷却

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The text also explains the kernel question that we should be cautel at the whole process,points out that we must reduce the life-span wasting of the assembly,controls the speed of cooling strictly,the system and operation should be simple do our best,avoids larger difference of temperature and bulge,lessens the distortion of cylinder.

本文还对快速冷却时应注意的核心问题加以说明,指出在强制冷却过程中必须尽量降低汽轮机部件寿命损耗,应严格控制冷却速度,冷却系统及操作力求简单,防止产生过大的温差、胀差及变形。

Cooling system with gear-driven pumps, high efficiency, high reliability; Belt drive failure will not result in engine overheating; Double thermostat design to improve the reliability of the cooling system

1.3 冷却系统采用齿轮驱动水泵,效率高,可靠性高;不会因为皮带传动失效造成柴油机过热;双节温器设计,提高了冷却系统的可靠性

Effects of P modification on primary Si in hypereutectic Al-Si die casting alloy with different cooling rates were investigated.

以过共晶压铸铝合金为对象,研究了P变质对不同冷却速度下初晶Si组织的影响。发现P变质处理前后随冷却速度的增加,初晶Si尺寸减小的变化趋势十分相似,并且都存在一个明显的突变区域。

Personally think that the first time in his place before the days of the best things to stay if not used, because two can play much on the attack, he had little chance to moonset, especially in such a restricted Wudang martial skills and more, so he used Pegasus飞瀑second, if spent immediately, this time also on the cooling down, and whether or not he did not bite on the run are chasing him, and if the time spent immediately on a drop-off, this time the situation must be cut West on the use of cooling, if not cooled quickly to their own on a few fresh, so down, it is estimated that more hope to win big.

个人认为在他放第一次天外之前最好别用呆若,因为两个远攻的打能放到他月落的机会不多,尤其是武当这样受制技能多的门派,所以等他用完第二次天马飞瀑,就马上呆若,这个时候月落也该冷却了,不管他上没上当都追着他跑,等呆若时间一过就马上月落,这个时候要是斩情决冷却了就用西子,要是没冷却就赶紧给自己清新几下,这样下来,估计赢的希望就比较大了。

After analysing the flight, cooling and undercooled solidification of multistage atomized droplets, this paper adopts Newtonial cooling, highly undercooled heterogeneous nucleation and steadystate continuous growth model to calculate and simulate numerically the thermal history of droplets and effect of main atomization process parameters during multistage atomization. The results indicated that large undercooling occur mainly during later stage of multistage atomization while recalescence and rapid quenching occur mainly during forced cooling stage.

在分析多级雾化过程雾化微滴的飞行冷却和过冷凝固特点及规律的基础上,本文采用了牛顿冷却、大过冷非均匀形核及稳态连续生长模型,对纯铝多级雾化过程中微滴热历史以及主要雾化工艺参数对其的影响作用进行了数值分析和计算,结果表明:大过冷主要是在多级雾化后期形成的,再辉和急冷则主要发生在强制冷却阶段。

However, when condensation water falls to next row of cooling tubes, it will be then recooled and the supercooling will increase.

但是,当凝结水下落到下一排冷却管上时,又被该排冷却管再冷却而使其过冷度增加。

First, a system for providing liquid refrigerant subcooling (10), subsequent to the subcooling accomplished by the primary condenser of an air conditioner, refrigeration or heat pump system, by means of evaporative cooling utilizing the condenser water of said air conditioner, refrigeration or heat pump system and/or some other water supply to wet the surface of the subcool heat exchanger and then passing the cold, dry building exhaust air (13) required for good indoor air quality across the wetted surface of the subcool heat exchanger or by using building exhaust air only to conductively subcool.

首先,一个提供液态制冷剂过冷的系统(10),在由空调、制冷或热泵系统的主冷凝器实施完成过冷之后,通过蒸发冷却,利用所述空调、制冷或热泵系统的冷凝器水和/或一些其它水源来润湿过冷热交换器表面,然后使为达良好质量室内空气所需的建筑物干冷排气(13)通过穿过过冷热交换器的润湿表面,或只利用建筑物排气以传导方式过冷。

The critical cooling rates in undercooled austenite transformation process of T91 ferritic heat-resistant steel were studied by DIL805A/D high-resolution differential dilatometer. According to the dilatometric measurements, phase transformation kinetic information was obtained with the aid of the analysis of the lever rule from the recorded dilatometric curves.

利用DIL805A/D高精度差分膨胀仪,通过线膨胀行为测量与微观组织分析,获得T91铁素体耐热钢连续冷却转变过程中相关动力学信息,结合冷却后T9l钢组织特征,确定了T91钢过冷奥氏体转变过程中的临界冷却速度。

The coarse grain in cast strip is produced on the condition that cool speed is not fast enough to overcool aluminum melt in whole cast area, and only provide proper temprature gradiant to keep cellular grain growing up.

铸轧区内铝液与铸轧辊接触瞬间,当铸轧辊冷却强度不足以使整个断面铝液同时产生较大的过冷,而仅能保持胞状晶生长所需的液体温度梯度时,铸轧板就会出现粗大晶粒;根据传热学原理,分析了具体生产条件,提出增大铸轧辊冷却强度、降低前箱温度以及添加铝钛硼丝等防止铸轧板产生粗大晶粒的措施。

An improvement on the die casting technology of aluminium hub includes drilling hole at the position of die, where the function of die is not affected, for preventing gas from coming into molten aluminium, mounting safety valve to the exhaust opening of die casting case for keeping proper pressure to save electricity and shorten die casting time, and increasing the water-flowing area of cooling disk or ring for higher cooling effect.

一在不影响模具本身功能部位钻孔增加排气通道,解决了压铸过程中产生的气体进入铝水问题。可使铝轮减少气孔。在压铸机箱体排气口部位,安装安全阀,能使压铸机箱体内保持适当的压力,工作时少进气、少排气,起到节电不堵浇口,缩短压铸时间,提高产量。冷却盘、冷却环改进后,增加了过水面积,提高了冷却效果。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?