They're an anchor for ropes, which passengers use to steady and pull themselves across the wing, especially during a water landing.

这些钩子可以固定绳子，而绳子可以供乘客稳定地越过机翼，特别是水上迫降的时候。

Denysenko said that in the event of an emergency water landing, the crew would have to evacuate the plane on inflatable equipment.

德尼森科说在紧急水上降落的情况下，机组人员不得不乘坐充气装备撤离飞机。

What's with all the bottles of liquor? Excuse me, Miss! In the event of a water landing, could this seat be used as a floatation device?

带那么多酒干什么？打扰一下，小姐，在一场无法避免的水上着陆，这个座位可以用做漂浮设备吗？

But in closed-pored metal foams, the little bubbles are all separated, which means they can float in water, which could be helpful for building sturdier, lighter boats and spacecraft that can make water landings.

在闭孔金属泡沫中，小气泡都是分开的，可以漂浮在水面，对建造更坚固更轻的船大有帮助，制造的太空船可以在水上降落。