The ailerons are movable sections along the rear edges of the wings . 副翼是机翼后缘的可动部分。
Holly has high tearing resistance and is excellent for trailing edges . 冬青属的木才具有高抗断裂强度,是制作后缘的理想材料。
Small rectangular backup bars were used to fabricate the web-bottom flange connection . 在腹板与下翼缘的施焊中使用小矩形挡板。
The complexities of the northern belt of westerlies are well illustrated in climates in the united states . 美国的气候相当有力地说明了西风带北缘的复杂性。
A terrible drought and famine destroyed africa's sahel, the fragile desert along the south edge of the sahara . 一场可怕的干旱与饥饿毁灭了非洲的萨赫勒地,那是沿撒哈拉南缘的易受冲蚀的沙漠地带