The gun-layers were responsible for aiming and firing the cannons.

The gun layer aimed the cannon at the target.

The gun-layer aimed the cannon at the target.

The Knudsen layer is a region of gas flow near a solid surface where the mean free path of the gas molecules is comparable to or larger than the characteristic length scale of the surface.

The Knudsen layers in the microchannel enhance the gas flow.

The transition layer between the two materials is where the color changes.

The transition layers between the different materials provide a smooth and seamless connection.

The plexiform layers of the retina are responsible for processing visual information.

I love to bake layer-cakes for special occasions.

I layer up with warm clothes in the winter.