DIN 21555-1991 标准详情
- 标准号:DIN 21555-1991
- 中文标题:矿井支承.动力支承的开环控制装置的图形符号
- 英文标题:Mine support; graphical symbols for the open loop control of powered support
- 标准类别:德国标准
- 发布日期:1991-08
The standard contains pictographs used as symbols for marking controls of powered support. By assigning a standard meaning to such pictographs, a marking independent on spoken or written language is arrived at.#,,#
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