neutral ball pen ink 中性圆珠笔墨水
erasable ball-pen ink 可擦圆珠笔油墨
thixotropic ball-pen ink 触变圆珠笔油墨
suspended graphite ball-pen ink 石墨悬浮圆珠笔油墨
ball-pen ink 圆珠笔油墨
ball pen printing ink 圆珠笔油墨
Ball point pen ink 圆珠笔用油墨
Ink for ball pen 圆珠笔用油墨
ball-point pen ink 原子笔墨水
They can also be used to modify viscosity in ball pen printing ink.
也可在圆珠笔油墨中作调节粘度用；
The trouble and the waste caused by abandoning the core of the ball pen and changing a new one without using up the ink are avoided.
避免了圆珠笔总是笔油用不完就要将笔芯弃旧换新，而带来了麻烦和浪费。
Finally the rubber, the ordinary rub out the pencil, eraser, can only and it can also erase pen, ball-point pen, such as a variety of ink.
最后是橡皮了，普通的橡皮只能擦掉铅笔字，而它还能擦掉钢笔、圆珠笔等多种墨迹。
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