Using the analytical relationship, many boundaries namely scissors sketed, could be drawn on the parameter plane of horizontal tail area and aeroplane center of gravity.

利用这种解析关系，可以在平尾相对面积和飞机重心位置的参数平面上，绘制出各种限制边界，形成所谓“剪刀图”。

youdao

In experiments, the bird body launched by a big air gun impacts the full scale windshield of the aeroplane to simulate striking between a flying bird and a flying plane.

在实验中，利用空气炮发射鸟弹，撞击飞机全尺寸风挡，以模拟飞鸟和飞机的相互撞击。

youdao

It is difficult to tell if the people who upload their pictures to this site are really plane geeks at all, I suspect they may be photo geeks on an aeroplane site because some of these pictures are beautiful.

BBC: Enviropedia website