Terms for subject Skydiving containing the

English	Chinese
distance to a turn point and back to the starting point	定点往返距离
get down to the ground	着陆
hit the silk	跳伞降落
loop-the-loop	翻筋斗
nonstop circumnavigation of the earth	环球直达飞行
on the beam	航向正确
roll-off-the-top	殷麦曼特技飞行半筋斗反转
Sport Balloon Society of the United States of American	美国运动气球学会
stunt off the ground	低空特技飞行
touch the central disc	踩点
touch the central disk	踩点