对角线

Footsteps had scored a diagonal path through the snow.

脚印在雪地上留下了一条对角线。

The two diagonals of a square cross in the centre.

正方形两条对角线交于正方形。

As the crane is static the mast sections are directly fishplate onto the 4 fixing angles corresponding to the mast type used.

由于该起重机是固定式，其塔节与四固定角钢呈鱼尾形（译注：即对角线），角钢形式又与塔身类型相对应。