Drawing (do not mix it with painting) is a particular type of visual art, stemming back to prehistoric times with their rock and cave drawings.
绘图(不要与绘画混为一谈)是一种特殊的视觉艺术类型，可追溯至史前时期的岩画或洞穴壁画。
2
As for ore drawn by hand or rock loader, the ore drawing quantity of each chute shall be kept uniform to ensure the flatness of working face of stope.
人工出矿或装岩机出矿方式，各出矿穿必须均匀出矿，保证采场工作面平整。
3
The paper approached the subject of the application of draw theory which utilizes the movement rule of caved rock to control ore-drawing under overlying rock.