▎ 摘　　要

NOVELTY - Multi-channel air intake device comprises air inlet pipe (4), air inlet flow controller (5), and gas pipeline (6). The air inlet pipe is mounted on upper part of air inlet flow controller. The air inlet flow controller is connected with gas pipeline. USE - Multi-channel air intake device used for preparing chemical vapor phase of graphene (claimed). ADVANTAGE - The device enhances equilibrium of gas phase in the surface of the substrate, eliminates boundary layer on substrate, and has high quality graphene on substrate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of multi-channel air intake device. Air inlet pipe (4) Air inlet flow controller (5) Gas pipeline (6)