冷

Furthermore the performances of heat transfers including corrugate plate, tube and fin-tube were compared under the same conditions. The results show that when the air frontal velocity is between 2.45 and 4.1m/s, the overall heat-transfer coefficient of plate heat exchanger ranges from 100 to 160 W/m^2/ equal to one sixth of that of fin- tube cooler based on tube outside area, which is about 70% higher than that of tube cooler. The volumetric heat transfer capacity of plate cooler is 1.5 times as that of fin-tube cooler and 15 times as that of tube cooler. The heat transfer capacity of per unit power of plate cooler is 5.5 times as that of tube cooler and similar results for fin-tube cooler.

在相同工况下，比较了波纹板式、光管式和翅片管式空冷器的性能指标，结果表明：迎面风速在2.45~4.1m/s之间，波纹板式空冷器传热系数达到100~160W/平方公尺/℃；约比光管式提高70%，但只有以管束外表面为基准的翅片管式传热系数的六分之一；板式空冷器单位体积换热量约是翅片管式空冷器的1.5倍，是光管式的15倍；板式空冷器单位功耗换热量约是光管式空冷器的5.5倍，而翅片管式空冷器与光管式空冷器则相差不大。

In the new process, middlelowtemperature waste heat is used as heat source and LNG cold energy is divided into the lowtemperature latent cold energy and the hightemperature sensible cold heat. Nitrogen Brayton cycle recovers lowtemperature latent LNG cold energy, while the ammoniawater Rankine cycle recovers the hightemperature sensible LNG cold heat, whereby the graded use of energy can be realized. The exergy efficiency of LNG cold energy utilization can be effectively improved.

流程中以中低温余热为热源，并将LNG冷量分为低温级的潜热冷量和高温级的显热冷量两级，氮气Brayton循环回收LNG低温级的潜热冷量，氨水混合物Rankine循环回收LNG高温级的显热冷量，实现了能量的梯级利用，有效提高了LNG冷能利用的火用效率。

The composition of TB6 alloy ingots after heat treatment then water colling and air colling was analyzed. The results show that the segregation in the grain boundary is more serious than the segregation in the grain both in air cooled ingot and quenching ingot, the composition in grain boundary are not uniform; the segregation of Fe is more serious than the segregation of Al and V; the composition in air cooled ingot and quenching ingot are more uniform than the composition in cast; the segregation in quenching ingot is lowest, quenching can reduce the segregation.

中文摘要：对热处理之后进行水冷与空冷的TB6合金铸锭进行了成分分析，对两种热处理所得结果进行分析，发现无论铸态还是空冷与水冷之后的试样，晶界偏析总比晶内严重，而且晶界处的成分分布很不均匀；Fe元素的偏析要比Al元素与V元素的偏析严重；空冷与水冷后的试样，各个元素分布较原始态的更加均匀，各测试点之间的差距减小；水冷之后的试样成分分布更理想，比空冷的效果好，水冷可以显著改善TB6合金铸锭偏析现象。

For supercooling directional solidification, ideal directional microstructure can be obtained only within the supercooling range 63～83K and 127～170K. These two supercooling ranges just corresponds to the supercooling for developed equiaxial dendrites in ordinary supercooling solidification.

6对于深过冷定向凝固来说，只有在63～83K的低过冷度范围和127～170K的中过冷度范围才能获得理想的定向生长组织，而这两个过冷度范围正好对应于深过冷熔体凝固组织为发达的等轴枝晶的过冷度范围，这种组织的相似性似乎与过冷度一样具有遗传性。

Compared to ice precooling, water precooling and vacuum precooling,the advantages of pressure-difference precooling were introduced.

介绍了压差预冷技术相对于冰预冷、水预冷以及真空预冷的优点，综述了压差预冷技术在国内外的研究现状，同时指出目前压差预冷技术中存在的问题，预测今后的发展前景。

C or less of saturated compressed air into the dryer of the pre-cooling device, in the pre-cooling device in heat exchange with the ambient air, high temperature air pre-cooling fan part of the heat is taken away, after pre-cooling the compressed air into the to the pre-evaporator refrigeration system with secondary refrigerant vapor heat exchange, allowing the temperature dropped close to the refrigerant evaporation temperature, and flows through the pre-filter to remove large amount of liquid water, oil mist and dust.

小于等于80°C的饱和压缩空气进入干燥机的预冷器，在预冷器中与环境空气进行热交换，高温压缩空气的一部分热量被预冷风机带走，预冷后的压缩空气进入到制冷系统的前置蒸发器，与冷媒蒸气进行二次热交换，使本身温度降到接近于冷媒的蒸发温度，并流经前置过滤器除去大量的液态水，油雾和尘埃。

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

I also pointed out some of the views you, your baby may be scared, my baby is so before, to see the elderly experienced so scared to say this is a result of people with a good approach is to cook eggs , and then a cooked egg shell should be immediately stripped of the egg inside out, and then the silver film or silver rings on the inside of eggs in a clean handkerchief get wrapped in the baby's body face hands feet total Calvary digital twist to twist to the attention of eggs when the baby's Calvary twist when the total bit faster action, or else it will scald the baby, about 3 minutes or so rubbing it in to take a look at silver film, silver film, if there is discoloration , it is being scared to death of the baby, pay attention to when the eggs boiled eggs should like to take this up when hot去弄can not be allowed to冷掉, otherwise there would be no effect, you need to look at or try this approach, my experience that is the case, the baby is now my home has been 1 week 3 months, and would like to give you help

我也提一些意见吧，宝宝可能是吓到了，我的宝贝之前也是会这样，有经验的老人看到这样子就说这是吓到了，结果用了士办法就好了，就是把鸡蛋煮熟，然后鸡蛋一煮熟就马上要把壳剥掉，把里面的蛋黄拿出来，然后把银片或银戒指放在鸡蛋里面在拿一块干净的手帕包起来在宝宝的脸手身子脚各各总位搓来搓去，注意当把鸡蛋宝宝的各各总位搓时动作要快，不然这样会烫到宝宝，大约搓三分钟左右吧，在把银片拿出来看一下，如果银片有变色的话，那是宝宝被吓到了，注意了当鸡蛋煮起来时鸡蛋要趁烫的时候去弄不能让它冷掉，否则就没有效果，你看一下要不要用这种的办法试一下，我的经验是这样，现在我家的宝宝已经1周3个月了，希望能带给你帮助

The results showed that wind precooling could inhibit the respiration intensity of plum fruit, while the two precooling methods had little effect on the formation of ethene. The firmness and soluble solid content decreased on storage. The precooling methods had little effect on the firmness of fruit, but wind precooling could relieve the decrease of to a certian extent. The two varieties of plum fruit both became rotten in the late period of storage, the rot with ice precooling was higher than wind.

结果表明，风预冷可抑制'黑宝石'和'安哥诺'李果实的呼吸速率，但这2种预冷方式对果实乙烯释放量的影响不明显；随着贮藏时间的延长，'黑宝石'和'安哥诺'李果实的硬度和SSC含量均下降，这2种预冷方式汁果实硬度的影响不大，但风预冷可在一定程度上缓解果实SSC含量的下降；在贮藏后期，2品种李果实均表现出腐烂症状，冰水预冷果实的腐烂症状明显高于风预冷。

The results showed that wind precooling could inhibit the respiration intensity of plum fruit, while the two precooling methods had little effect on the formation of ethene. The firmness and soluble solid content decreased on storage. The precooling methods had little effect on the firmness of fruit, but wind precooling could relieve the decrease ofto a certian extent. The two varieties of plum fruit both became rotten in the late period of storage, the rot with ice precooling was higher than wind.

结果表明，风预冷可抑制'黑宝石'和'安哥诺'李果实的呼吸速率，但这2种预冷方式对果实乙烯释放量的影响不明显；随着贮藏时间的延长，'黑宝石'和'安哥诺'李果实的硬度和SSC含量均下降，这2种预冷方式对果实硬度的影响不大，但风预冷可在一定程度上缓解果实SSC含量的下降；在贮藏后期，2品种李果实均表现出腐烂症状，冰水预冷果实的腐烂症状明显高于风预冷。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。