预热

There is dehydrogenization reaction during the combustion process leading to sample expansion, which is harmful to the reaction between W and C and unfavorable to the synthesis of uniphase C.

燃烧产物由两种粉末组成：粒径2-4μm，棱角较明显的粗粒度粉末和粒径≤1μm的细粒度粉末；随体系中W含量减少和预热温度的提高，产物粗粒度粉末增加，细粒度粉末减少。

Some models may cover space heating, space cooling,(space heating via conditioned air, hydronic systems and / or radiant heating systems), domestic or pool water preheat via the desuperheater function, demand hot water, and driveway ice melting all within one appliance with a variety of options with respect to controls, staging and zone control.

有些型号可能包括空间加热，冷却空间，（空间，通过调节空气加热的液体循环系统和/或辐射采暖系统），国内或池水预热（通过减温器的功能，热水的需求，和冰融化车道内的所有设备之一与控制方面的各种选择，分期，分区控制。

Based on analyzing the dilatometric curves, metallographic structures of test samples of these simulation procedures, four factors which have influences on the tendency of the appearance of the cold cracks in HAZ have been studied, these factors are preheating, slow cooling, expanding the cooling time (t8/5 and t8/3), and heat preservation.

通过对这些模拟过程的热膨胀曲线、试样金相组织等的分析，研究了焊前预热、焊后缓冷、延长冷却时间t8/5与t8/3、焊后保温这四种因素对焊接热影响区冷裂纹产生倾向的影响。

The results show that the microstructures of as-deposited and as-preheated alloys are composed of some equiaxed grains with no distinct difference, and the average grain sizes under two different conditions are 23 and 24μm, respectively.

结果表明：合金在沉积和挤压前预热两种状态中基体都由等轴晶粒组成，晶粒的平均尺寸分别约为23和24μm，热挤压之后。

Flameless oxidation technology is a new combustion technology with high temperature air over 800℃ through recovering waste heat in exhaust gas.

中文摘要：无焰氧化燃烧技术，又称高温空气燃烧技术，是通过回收高温烟气余热，把空气预热到800℃以上的一项新型燃烧技术。

In larger diameter conductors, and for secondary jacketing operations, the pre-heating can be done with either a gas flame or water-cooled quartz pre-heater tunnels.

对于直径较大的导体，和次要的外壳操作，或者用气体火焰或者用水冷式石英预热道都可以完成

Such as feeding, two-procedure preheating, sealing, oil-filling, washing, two-procedure under heating, knurling, curling, rolling watering line, unloading bowl and photoelectric checking, troubles warning, counting, etc.

如摄食，双预热程序，密封性，加油，清洗，两个程序下加热，滚花，卷曲，轧制线浇水，卸碗以及光电检测，故障预警，计数等，除了这些，它提高了速度和质量在原有的基础，是理想的设备。

If the lamp needs preheating before being at full force, protect the image with a lightproof material.

不过如果你的晒版灯在达到足够的照射力之前需要一定时间的预热期，那么为了保护图像，你需要准备一块厚纸板类的防光物先将图像遮盖起来，直到得到稳定的照射力之后再将其撤去。

Pre heat the oven to 500F. Make 4 to 5 slashes on each loave.

烤箱预热500F，在每个面团上用尖锐的刀片划几道。

The curators and committee of Shenzhen celebrated the launch of the Biennale with guests including architect Rem Koolhaas, director of nai, Ole Bouman, artist Madelon Vriesendorp, curator of Lyon Biennale Hou Hanru and director of Storefront in New York, Joseph Grima.

一场豪雨过后，零九深港双城双年展预热酒会在威尼斯双年展主展场吉拉蒂尼附近的圣乔治号渡轮上举行。策展团队和以市长唐杰为首的深圳市政府代表团共同出席了酒会。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。