普通电机型禁止在含有易燃和腐蚀性气体条件下工作，以保证安全生产及各电气元件的正常工作。
General electric type prohibited in flammable and corrosive gases contain conditions to ensure safety in production and the electrical components work properly.
危险：禁止用电阻元件加热铝瓶。
DANGER: Never heat an aluminum cylinder with electrical resistance elements.
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