报告航向和飞行高度层。

Report heading and flight level.

雷达截获目标，你到KC的航迹好，距离35海里，保持高度层230。

In radar contact, your track is good for KC, range 35 miles, maintain FL230.

在这个高度上我们遇到了严重积冰，请求转高的高度层。

We are encountering severe icing at this altitude, request higher level.

新规定让民航飞机的巡航高度层增加到13个，与美国的数量相同。

The number of levels has now increased from seven to 13, the same number as in the U.S..