主要的技术特点是采用了底部加热区。
The major quality feature is that thermal oil runs through the boiler rear wall, and simultaneously cools it.
一个水槽沿着道路建造，水装的半满，用油和空气在底部加热。
A trough is built alongside the road and kept half-filled with water which is heated by oil and air fed units at the bottom.
在被加工杯子的底部，用杯子底部加热装置同时进行加 热。
The invention is characterized in that on the bottom of the processed cup, heating is simultaneously carried out by using the cup-sole heating device.
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