For special requirement, argon or krypton gas can be filled in heat-insulating gaps. 如有特殊需要则采用中间隔热层充以氩气或氪气。
Argon is used primarily for its properties as an inert gas in applications such as arc welding, steelmaking, heat treating, and electronics manufacturing. 因其惰性气体的稳定特性，氩气主要应用于焊接，钢铁制造，热处理以及电子产品制造等领域。
