这些用记号笔或喷漆画的图案原本只具功能性，但是它们逐渐成为更具艺术性的作品。
Written in marker pen or spray paint, these designs were purely functional but they gradually made way for more artistic work.
起下钻时，被确认的所有损坏的，不能用的管具和材料，都必须标上清楚的记号、汇报及甩掉。
All damaged or unusable tubulars and materials identified during the trip will be clearly marked, reported and laid down.
当卸扣时，有疑难题目的接头要划上记号，记载在钻具记载本上，并向带班队长汇报。
When breaking out singles, any problem connection must be marked, recorded in the Tally Book and reported to the Toolpusher.
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