This utility model relates to a pen which can write on the plane with stereovision effect, consisting of a pen point, a pen core and a pen tube.

本实用新型涉及在平面上书写出具有立体视觉效果字的笔，由笔尖、笔芯和笔管三部份组成。

youdao

Simply slide the tube out of the Exo Terra Cricket Pen and drop the flapper down to prevent escapes.

简单地滑管的外Terra板球钢笔和降下来，以防漏气的挡板。

youdao

After the ink tube is inserted in the pen head component, the seal film is broken by the convex tube upwards, ink flows into a pen point, and a user can write.

当储墨管插上笔头组件后，凸管顶破封膜，使墨水流向笔尖，即能书写。

youdao

BioMedicines of Emeryville, Calif. is testing its Omega interferon with a Duros pump, a titanium device that looks like the ink tube of a Bic pen.

FORBES: The Next HIV?

When the rubber sack makes contact with an object, whether a glass, a pen, or other hard item, a narrow inner tube sucks a small percentage of air out of the sack, making it contract and conform to the shape of the object it touches.

FORBES: Welcome, with a Nod to Robotics