If you must use a PTFE-lined pan, keep your stove's burner on medium or lower. Also, never preheat an empty pan.
非要使用PTFE(聚四氟乙烯)内衬的平底锅时，应保证炉头处于中等或更低温度。另外，绝对不要预热空无一物的平底锅。
The CONSTEEL process introduces a new concept in electric steel -making. The process USES the furnace off-gas and fuel to preheat the scrap fed into the furnace.
康斯迪工艺提出了电炉炼钢新概念：即利用电弧炉排出的高温废气对送往炉中的炉料进行连续预热。
The exchanger is used to recover the waste heat of the flue gas from enamelling furnace, in order to preheat the air entering the drying oven. Good results in energy saving have been obtained.
该换热器用于回收搪烧窑废气余热，以加热进入烘房的空气，获得了显著的节能效果。
Before soldering, be sure to preheat components.
焊接前零件一定要预热。
ZDH series preheater is mainly used to preheat the PCB before impact cutting.
ZDH系列预热机主要用于印制板在冲切前的预热。
A shortened cycle should be used to preheat the system (ie omit the drying phase).
缩短的周期应该用来预热系统(即省略干燥阶段)。
Park automobile on the flat and level road, and then start engine to preheat engine oil.
将车辆停放在平坦和水平路面上，然后起动发动机以预热机油。
A solar wall was also erected on the south-west facade of the building to preheat fresh air.
太阳能墙壁也竖立在大楼的西南立面来预热新鲜空气。
Using the preheat bell to keep the exhaust gas circulating, it can save energy more than 40%.
采用炉料预热罩强制烟气循环预热炉料可节能40%以上。
To cook waffles like the best restaurants do, simply preheat the waffle maker until the READY light comes on.
就像是在最佳的餐厅烹制华夫饼，简单地预热华夫饼机直至准备就绪灯亮起。
The experiment results show that the welding defects can be decreased by using preheat and post-weld heat treatment.
试验表明，采取焊前预热，焊后热处理的TIG焊工艺进行焊接可以减少焊接缺陷的产生。
In this paper, the effect factors on heat treatment distortion, such as material, forging and preheat treatment etc. have been studied.
本文对影响齿轮热处理畸变的材料、锻造、预备热处理等因素进行了研究。
Cover and let rise at room temperature until almost doubled in size. Approximately 2 hours. Meanwhile, preheat oven to 325 degrees F (165 degrees C).
用塑料薄膜将卷好的一个个可爱的小羊角面团盖好进行二次醒发大概2个小时，同时将烤箱预热到325华氏度。
The effects of chloridization reactor, preheat temperature, chlorine flow rate, reaction temperature and reaction time on the conversion of chlorine gas were examined.
考察了氯化反应器、预热温度、氯气流速、反应温度及反应时间对氯气转化率的影响。
Under high speed preheat in blast furnace and gasification in iron-bath for smelting reduction the pyrolysis of pulverized coal injection is the first important stage.
高炉喷吹煤粉和熔融还原铁浴粉煤气化等高速加热条件下，快速热分解是第一步。
The effects of different process parameters such as laser power, scanning speed, preheat temperature, powder-bed depth on the sintered quality were studied systematically.
系统研究了激光功率、扫描速度、预热温度、铺粉厚度等工艺参数对成型试样质量的影响。
A fresh air system with a preheat function can provide comfortable temperature of fresh air to keep the indoor temperature at the same time to achieve energy-saving purposes.
具有预热功能的新风系统，把温度适宜的新风引入，保持室内温度的同时又达到节能的目的。
The paper introduces welding technology of type ZY6400/12.5/28 hydraulic support, from several respects of selecting materials preheat before welding, welding process and so on.
从焊接材料的选用，焊前预热、焊接过程和焊后热处理的控制几个方面，着重介绍了ZY6400/12.5/28型液压支架的焊接工艺。
The invention can preheat or cook raw materials in the middle of the digester, so that raw materials in the digester are uniformly cooked and the quality of discrete fiber is high.
本发明能够对蒸煮器中间部分原料进行预热或蒸煮，使蒸煮器内原料蒸煮均匀、分离纤维质量高。
Having optimized preheat temperatures, solder pot temperatures, and flux volume, the conveyor speed may have to be reduced to accommodate the solder wetting when using lead-free solder.
对预热温度、焊料槽温度和焊剂体积进行优化后，还可将传送带速度降低，以适应使用无铅焊料时的熔湿速度。
By simulation, the effects of reflux ratio, the area of the preheat-cool exchanger, cool duty of still pot, heat duty of evaporator and the liquid flow recycled by pump on heat sens...
通过模拟计算，研究了回流比、预热冷却器面积、塔釜冷却量、蒸发器加热量以及泵循环流量对热敏精馏过程的影响。
Characteristics of supersonic combustion by injecting supercritical kerosene fuel into a Mach 2.5 crossflow at various preheat temperatures and pressures were investigated experimentally.
针对各种温度、压力下，马赫数2．5流场中超临界煤油的超声速燃烧性能进行了实验研究。
In this paper the properties and structure characteristics of GH4133B alloy precision die-forgings by the present die forging process, and by direct ageing and preheat treatment are introduced.
叙述了现行工艺模锻的GH4133 B合金精化模锻件的性能和组织特点；叙述了直接时效、添加预备热处理精化模锻件的性能和组织特点。
In the process of cleaning, after the discharged dirty hot water enters into a backwater tank, the hot water can preheat the cold water in a preheating tube and the residual heat is fully utilized.
清洗中所排出的污热水进入回水箱后，可对预热管内的冷水进行预热，能充分地利用余热。
It is found that there is a threshold energy density in laser doping, and distributions of dopant density and depth have relation to preheat temperature and plating layer thickness of the impurities.
激光掺杂存在一个阈值能量密度。掺杂浓度和深度的分布与预热温度和杂质镀层厚度有关。
首先将烘炉加热到375度。
将空盘放入烤箱预热。
Preheat your oven to 400 degrees.
烤箱预热华氏400度（约摄氏204度）。
Preheat your oven to 400 degrees.
烤箱预热华氏400度（约摄氏204度）。
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