Operation requirements of turreted gun in helicopter air combat and mathematic inverse solution

炮塔 式枪炮在直升机空战中的使用要求和数学逆解

The hotel is not unlike one of those sinister turreted house in old-fashioned horrow films .

这座宾馆很像老式恐怖电影中的那些阴森的、带 塔楼的房屋。