An electromegasonic wafer cleaning system is disclosed that is extremely important, if not essential, in the fabrication of advanced microelectronic devices having a line width or feature size of from 0. A reliable monitoring of threatening breaking out of the melt is therefore needed. The recess may comprise various cross-sectional shapes, such as, at least one circumferential groove, a plurality of circumferentially positioned recesses, or be shaped such that the O-ring comprises a cruciform cross-section. The controller selectively actuates at least one valve of the independent metering valve arrangement based on the sensed pressure at the head end chamber and a mode of operation of the control system. Such a hose for fuel is excellent in interlaminar adhesive strength and also excellent in antistatic properties and fuel permeation-preventing properties, and particularly, the dependency of the interlaminar adhesive strength on the take-up speed during the co-extrusion molding, is small. The TCBs have stored therein control information to process or route packets.