Ar gas的用法和樣例：
例句
- For special requirement, argon or krypton gas can be filled in heat-insulating gaps.
如有特殊需要則採用中間隔熱層充以氬氣或氪氣。 - Argon is used primarily for its properties as an inert gas in applications such as arc welding, steelmaking, heat treating, and electronics manufacturing.
因其惰性氣體的穩定特性，氬氣主要應用於焊接，鋼鐵製造，熱處理以及電子產品製造等領域。
