除了在骨头上写字，中国人还在龟壳上做标记。
In addition to writing on bones, the Chinese also made marks on turtle shells.
研究人员已经发明了精敏的新技术，来模拟化学药品，在紧密结合的沉默基因表达的DNA -蛋白复合体上做标记。
Researchers have devised clever new techniques to mimic the chemical marks on tightly wound DNA-protein complexes that silence gene expression.
我们每天在日历上做标记。
它能够较容易的用于各类切割装置，划线笔较高的材质可轻易的在各种钢板上做标记。可配置在BURNY数控系统或其它数控系统上使用。
It can be easily retrofitted to almost any cutting station. The marking stylus easily penetrates most materials. The Scriber is compatible with BURNY Controls and other CNCs as well.
它能够较容易的用于各类切割装置，划线笔较高的材质可轻易的在各种钢板上做标记。可配置在BURNY数控系统或其它数控系统上使用。
It can be easily retrofitted to almost any cutting station. The marking stylus easily penetrates most materials. The Scriber is compatible with BURNY Controls and other CNCs as well.
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