A clapper-board as seen in the production of movies. Not sure about the term "clapper-board" though, it's the best translation I could find (I'm German) 場記板 board、clapper、movies、slate、slate board、sticks、sync slate 板、鈴舌、電影、石板、板岩板、枝、同步石板 資料來源：openclipart ( https://openclipart.org/ )
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