| http://www.w3.org/ns/prov#value | - 20090312938GAS SENSOR, OXYGEN SENSOR AND AIR-FUEL RATIO CONTROL SYSTEM - The invention provides an air-fuel ratio control system in which high precision can be applied to the air-fuel ratio feedback control of an engine by using a gas sensor mainly configured by an oxygen sensor that prevents the deterioration of the holding power of sealing material which enables high density filling with a small
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