A rotation-angle detecting device contains two rotators having the same number of teeth, which engage with a gear fixed to a rotation-detecting axle as a detected object. In particular, the disclosure relates to the removal of fiber from macroalgae andor microalgae using low g-force centrifugation. When the consistency control unit issues a write back request of a memory block, the cache device transmits the memory block to the consistency control unit. Furthermore, the active region of the injection pipeline is additionally configured as an induction heater regarding the surrounding area in the deposit. The user can scroll between the multimedia files presented in the parade.