Doğru Cevap: a triangular steel plate with a hole at each corner

Açıklama: "A flounder plate, on a topping lift, is a triangular steel plate with a hole at each corner" because it provides a stable and secure point for the topping lift to pass through, preventing twisting or chafing of the line, as per the principle of providing a fairlead for lines and wires to prevent damage and improve safety.