| 摘要 |
A drum type washing machine includes an outer cabinet, a water tub mounted in the outer cabinet and having a rear wall, a generally drum-like rotating tub rotatably mounted in the water tub and having a rear wall, and a turbidity sensor sensing a turbidity of wash liquid in the water tub and disposed on a lower inside face of the rear wall of the water tub, the turbidity sensor including a light emitting element and a light detecting element.
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