hot vacuum forming 中文意思是什麼
hot vacuum forming
解釋
真實熱成形-
In small lamps, all the air is pumped from the glass bulb, forming a vacuum, which prevents the white - hot filament from burning away
在小照明燈中,所有的空氣都從燈泡中抽出,形成真空,以防熾熱的燈絲被燒毀。
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