Disclosed are implementations of methods, apparatus, systems, and computer-readable storage media for rendering information. The coaxial resonator comprises a dielectric block having a through bore extending through opposite end faces thereof, and a conductor layer formed over an outer peripheral surface of the block except one end face thereof and over a block inner surface defining the through bore for causing electromagnetic waves to resonate within the dielectric block. The mounting hole defines a first hole and a second hole smaller in width than the first hole and communicating with the first hole. The table search module searches the corresponding relationships between the application and the extension from the data stored in the first table and the second table automatically when a user wants to open a file. The flow distribution element extends across a direction of exhaust flow through the main body and is mounted at a side of the main body that is opposite the side inlet.