A support electrode and a counter electrode constituting parallel plate electrodes are disposed in a process vessel. Each of a plurality of processes is defined as a 3-tuple including a noun, a verb and an attribute, and a selected process is displayed as a point in navigation space. The chassis frame is provided with two longitudinal sole bars and with at least one cross-member located therebetween and connected to the sole bars via at least two articulations. In another feature, the first and second arrays of stiffening elements can be configured to substantially avoid intersecting in the medial section of the deformation-control member. An incoming call redirected through the GML is also processed as collectively paid by the GML. A key-type member is connected to the focal adjustment member and is electrically connected to the light-emitting element, controlling operation of the light-emitting element and adjusting luminous brightness thereof.