grinding marks meaning in English
研磨痕
Examples
- Technique on yellow ground mark and period of qianlong reign
黄地斗彩八宝纹扁壶 - Finally , the study gives itself plan about information fusion of position system and underwater signal , tallying the measured data of time , position and depth with ground mark
最后，对定位系统与水声信号之间的信息融合问题给出了自己的方案，使得时间、方位、深度的测试数据与地面标记有良好的吻合。 - Power cable route protection zone : the areas between two parallel lines formed by 0 . 75 meters on both sides of the ground mark of underground cable route ; for sea - bottom cables , the zones should be the water surface between the two parallel lines formed by two nautical miles on both sides of the line ( 100 on both sides of the line in port ) and no less than 100 meters on both sides of the line in rivers ( not less than 50 meters for mid - sized and small rivers )
（二）电力电缆线路保护区：地下电缆为线路两侧各零点七五米所形成的两平行线内的区域；海底电缆一般为线路两侧各二海里（港内为两侧各一百米） ，江河电缆一般不小干线路两侧各一百米（中、小河流一般不小于各五十米）所形成的两平行线内的水域。