• 1. marking board: 交易所揭示牌 | 记分牌 | 标图板 | 记分板

• 1.Mainly described are the working principles and structure features of the number marking device for the computer-controlled signal board.
  主要介绍了微机控制标志板打号机的工作原理及结构特点。
  dict.yoduao.com

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