| http://www.w3.org/ns/prov#value | - Reference numeral 1 denotes the device for controlling the volume of intake air for an engine, 11 and 12 first and second accelerator opening detection means, composed of a position sensor such as a potentiometer, for detecting the operation amount of an unshown accelerator, respectively, 13 throttle drive means composed of a DC motor, 14 a throttle valve provided in an inlet pipe for an unshown e
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