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.
用一个低压空气或软垫来支撑船体，软垫周围用高压空气环绕。
2
In addition, the waist cushion and armrest, also can reduce the intervertebral disc pressure.
除此之外，腰垫和扶手也可以减少椎间盘的压力。
3
HeLuanShi system in engineering field, pressure-blasting machine is mechanism sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment.