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.
电晕在电晕放电中在高压电极出现的一种微弱光辉,常伴随有朝向低压电极的电流 A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.
抽空密封的在低压或部分真空状态下密封起来的 Sealed under low pressure or a partial vacuum.