| 摘要 |
With reference to figure (2), a helmet (2) for an aircraft crew member (1) i s provided with a device (10) for forming an eye-shielding curtain (11) of air in front of the crew members eyes. The air exhausts to the ambient atmospher e (9) by way of an escape path (12) beneath the lower edge of the visor (4), a s indicated by arrow (13).
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