permissible 雅思专八

Is smoking permissible in the theatre?

在剧院里允许吸烟吗?

An MDA is the lowest permissible height (in a nonprecision approach) at which an aircraft can be controlled by reference only to instrument information.

最低下降高度是在仅参照仪表信息就能操纵航空器时最低允许高度(在非精密进近中)。