| http://www.w3.org/ns/prov#value | - As shown in FIG. 3, there is a second embodiment of the invention, in which the dial shown in FIG. 2 is replaced by a rotary encoder 22 and the shaft of a pulse motor 23 is connected to the left end of the rotating shaft, and the rotary encoder and the pulse motor are connected to an adjustment section 24.
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