| http://www.w3.org/ns/prov#value | - In other words, in the device 1, only an operation of the movable portion 4 within a plane including the driving direction of the driving portion 3, namely within the XZ plane, can be selectively generated, and an operation within the YZ plane of the movable portion 4, or an operation in the so-called flapped direction can be suppressed.
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