篮球熊
花朵
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先介绍几个名词:
圆珠笔 = ball pen
自来水笔 = fountain pen
中性笔 = gel pen
书写介质 = writing medium
A ball pen that uses a writing medium with a viscosity between (that of) water and oil is called a gel pen.The gel pen,originated in Japan,has now become a new writing tool that enjoys international popularity.A gel pen combines the advantages of both the fountain pen and the ball pen.Writing becomes so easy and smooth with a gel pen due to the low viscosity of the gel and addition of lubricating agents to further improve its fluidity.It is a new generation of writing tool and replacement of your ball pen.
1年前
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