ball-pen ink

基本解释

Since my writing had a tendency to smudge , I completed school papers in ink or ball-pen, so answers needed to be right the first time.
自从我写了一种倾向，弄脏，我完成了学校的试卷球墨水或钢笔，所以需要的答案是正确的第一次。
The company mainly produces roller-tip pens, ball point pens, Gel ink pen white board marker permanent marker, mechanical pencil and other stationeries.
公司主要生产水性笔、中性笔、圆珠笔、白板笔、记号笔、活动铅笔等文化用品。
Although China was the major manufacture of ball-point pens in the world, the gel pen ink which was in high technology is still rely on importing so far.
我国已成为中性笔的生产和销售大国，但技术含量较高的中性墨水仍主要依赖进口。