冰层

bīng céng shì fǒu hòu dào néng zài shàng miàn xíng zǒu

冰层是否厚到能在上面行走？

Is the ice thick enough to walk on?

nà jià fēi jī shuāng yì shang méi bīng céng

那架飞机双翼上没冰层。

There was no icing on the aircraft.