The notum would have provided the stiff, rigid structure that wings need to create lift and support the insect in the air.

notum 会提供翅膀所需、刚性结构，以产生升力并支撑空中昆虫。

In recent years, scientists have hotly debated whether the body tissue came from the top of the insect, known as the notum, or the side of the body, known as the pleura.

近年来，科学家在激烈争论身体组织是来自昆虫顶部，即 notum， 还是来自身体侧面，即胸膜。