石墨 影片素材 第1頁

Graphite pencil draws a straight line on a white background paper, macro shot

Sharpened wooden graphite pencils on a black background arranged in a circle shape. School supplies art creative concept. Rotation

A symbolic representation of the fast charging of a graphene battery

smartphone with learn english animation

Loopable graphene structure. Two rows of carbon atoms. Dark honeycombs

back to school season with paper sheet and supplies

Man artist draws a nose with a graphite pencil HD 1920x1080p

Loopable graphene structure. Rows of carbon atoms. Dark honeycombs

Graphite pencil draws a straight line on a white background paper, macro shot

Crop artist sharpening pencil over table

Loopable graphene structure. Rows of carbon atoms. Silver honeycombs

elegant businesswoman writing with pencil in paperboard animation

Pen draws a check mark on a white background paper, macro shot

back to school season with paper sheet and colors pencils

Pen draws a heart a white background paper, macro shot

british flag and pencil learn english animation

back to school season with lettering in paper sheet

Loopable graphene structure. Two rows of carbon atoms. Dark honeycombs

pencils with statistics infographic animation

Cartoon pen, pushpin and paper clip in the pink background, 3d rendering.

Carbon nanotubes, Nanotechnology, 3d rendering.

Carbon nanotubes, nanotechnology, loop video, 3d rendering.

Carbon nanotubes, nanotechnology, loop video, 3d rendering.

Close up shot of the word "delete" written in blue pencil and erased with a white eraser on white paper, Showcasing Stationery Tools for Deletion and Creativity

Slow motion scene the EDM machine working with graphite electrode. The mold and die manufacturing process by EDM machine.