管顶和管底的内侧钢筋受拉，外侧钢筋受压；

When inner side reinforcing steel bar of tip and bottom pipe were pulled, outer side were pressed.

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注浆前左右两侧跟管顶压力相差不大，注浆后则要明显大于管顶压力。

Compared with the tip pipe, they were almost the same before grouting and noticeably bigger after grouting.

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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。

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.

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