| http://www.w3.org/ns/prov#value | - Further, it is preferable that said operating condition detectors include at least one among a wind speed detector for detecting the speed of the wind acting on the wind turbine, a rotation speed detector for detecting the rotation speed of a rotating component of the wind turbine including the rotor, and a load detector for detecting the load of the wind turbine, a blade stress detector is provid
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