1·There is a vacuum flask on the damask table - cloth.
织花桌布上放着一个保温瓶。
2·Pneumatic Vacuum Flask pressure out of the first glass of water, often containing large scale, not suitable for drinking.
气压保温瓶的压力，对水的第一座玻璃，内容往往规模大，不宜饮用。
3·The larger hollow inner cavity has the similar function as Vacuum Flask, playing a role of good insulation.
隔热功能。较大的中空内腔同保温瓶的功能相似，起到了良好的隔热作用。