A terminal device stores in a nonvolatile memory a video encoding method, a size expressed by pixels, a frame rate, a bit rate, and a key frame insertion interval suitable for reception. Each valve unit includes a ball movable along a valve axis radial to the spindle axis such that the ball can be further forced to abut firmly against a valve seat during a high-speed rotation. Using the network service information, a composite content list is created, including meta-data describing service provider content available from the service provider system and the broadcast service content. After this the plant can be potted in the soil. From the presence of the residue in the oil, the operator will be able to determine under which predetermined operating condition the hot-spot has been reached and to deduce the hot-spot for a given condition. In particular, a maintenance liquid, which exhibits excellent cleaning properties even in an ink jet printer using an ink having a high colorant density and containing a pigment, and a maintenance liquid for an ink jet recording apparatus, which does not attack members for a printer and possesses excellent antifoaming properties and preservativeantimold effect, are disclosed.