The presented problems and resulted harm about air seal axial clearance in a centrifugal compressor are pointed out.

指出了离心空压机气封轴向间隙存在的问题及造成的危害。

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New idea and new structure of air seal design for centrifugal induced draft fan is put forward through field inspection.

通过现场实地考察提出了排蒸汽离心引风机汽封设计的新思路、新结构。

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By improving the seal around the wound dressing to reduce air leaks, Zurovcik cut the pump's power requirements from about 14 watts to 80 microwatts, which comes from a hand pump.

通过改善伤口绷带周围的密封性来减少空气泄漏，佐罗夫西克采用一种手摇抽气机，将抽气机对能量的需要从14瓦削减到80微瓦（1微瓦等于百万分之一瓦）。

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Lachey purchased the Bel Air pad in 2006 from Heidi Klum and Seal.

FORBES: Connect

They aren't, and they create their own problems: the perfection of the seal they provide means that the air in the bottle has to be expensively removed before the stopper is inserted, and they are harder to extract than their natural competitors, although they do provide the expected satisfying plop when the bottle is opened.

ECONOMIST: Plastic wine stoppers

It seems sort of silly today, but we looked around the house and wondered which room would be easiest to seal off if something poisonous was released into the air.

BBC: Remembering the Pentagon attack