angular projection造句

There is an irregular dark fuscous blotch on the middle of the dorsum, with an angular projection anteriorly.
The costal half of the forewings is greyish brown, darkest at the fold, with two dark angular projections extending across the fold into the lighter posterior half of wing.
These reconstruct an image from a series of angular projections ( a Herman first showed its use in image reconstruction; whereas the method is known as Kaczmarz method in numerical linear algebra.
The spiral sculpture shows below the sinus-area a very slight angular projection of the whorls, which is made more marked by a thickening and elevation of the ribs at this point.
There is a shade of orange-purplish suffusion from four-fifths of the costa to three-fourths of the dorsum, well-defined posteriorly and with an angular projection in the middle.
It's difficult to find angular projection in a sentence. 用angular projection造句挺难的

The forewings are fuscous with a broad ochreous-whitish the costal streak from the base nearly to the apex, narrowing posteriorly, with a small angular projection on the lower edge at one-thirds.
There is a spot on the base of the costa, partially confluent with an irregular streak from the costa at one-fourth, reaching half across the wing, its lower portion forming an infuscated angular projection posteriorly.
The dorsum from the base to the tornus is bright ochreous, this colour throwing a slight angular projection across the middle of the fold, where it is clearly defined against the rather intensified dark shade above it, which is thus thrown into two obtuse angles.
There is a bronzy-blackish streak along the costa from two-fifths to the apex, anteriorly acute, cut by very oblique fine white lines at middle and two-thirds, the latter ( subterminal line ) continued to the termen where it forms a very acute angular projection including a black strigula, and then towards the dorsum before the tornus but not reaching it.
A thick bronze-brown streak, irregularly suffused black, is found towards the costa from near beyond this to the apex, anteriorly acute, cut by a very oblique fine white line from the middle of the costa, and one less oblique from three-fourths, making a very acute angular projection in the middle and continued to the dorsum before the tornus, both halves sinuate inwards, the projection enclosing a very fine black dash.