正象水能够支承船那样，空气也能够支承气球。 So air supports a balloon just as water does a ship.
这顶计划是将船支承在低压空气垫或低压空气软垫上，低压空气周围围着较高气压空气幔。 It was the idea of supporting a craft on a pad, or cushion, of low- pressure air, ringed with a curtain of higher pressure air.
扶手椅带有侧面结构用以支承胳膊或胳膊肘的椅子 A chair with side structures to support the arms or elbows.
这座桥是由系在两座桥塔上的粗大铁链支承的。 The bridge was supported by heavy iron chains hanging from two towers.
