1、There is a big lawn behind the ancestral room. It's a paradise for somersaulting, throwingflying disk, and playing various outdoor games.(祖堂后面有个大草皮，是我们翻筋斗、丢飞盘以及玩各种户外游戏的天堂。)
2、The position of the maximum pressure changes uniformly with the increase of the disk velocity or the minimum flying height under different conditions of ACs.(不同ACs条件下，随着磁盘速度或最小飞行高度的增加，压力幅值点位置的变化较均匀。)
