标准摘要
[中文适用范围]: 特别是当不需要显示精确的形状和尺寸并且标准化中心孔的指定足以提供信息时,可以使用这种表示模式。 附录A给出了R、A和B型的尺寸,附录B给出了符号的比例和尺寸。 [外文原描述]: This representation mode may be used particulary when it is not necessary to show the exact form and size and where the designation of standardized centre holes is sufficient for information. Annex A gives the dimensions for types R, A and B, and Annex B the proportions and dimensions of symbols.
英文名称Technical drawings — Simplified representation of centre holes