This pull is aided by a fundamental property of water called capillary action.

这种拉力还得到水的一种基本特征——毛细作用的帮助。

If the pen was turned upside down the capillary action and the surface tension of the ink would stop it from falling out the back of the pen.

如果过来，毛细作用和墨水的表张力会阻止墨水从的背掉出来。

The first is: What is the molecular motor that's responsible for the hair cell's amplification?

负责毛细胞扩音作用的分是什么？

This is exactly what hair cells do.

毛细胞的作用正是这样。

This is called capillary action and it's what allows water to climb tree roots and nutrients to flow around our body.

这就是所谓的毛细作用，这让水能够爬上树根、让营养物质在我们体内流动。

So it does the job of the hair cell.

所以它起到了毛细胞的作用。

In fact, without the limitations of gravity on capillary action, directing liquids through these micro-structures could be extremely efficient.

事实上， 如果没有重力对毛细管作用的限制，引导液体通过这些微结构可能会非常有效。

Well, that's the job of the microscopic lymphatic capillaries.

这是显微镜下毛细淋巴管的作用机制。