To see anything smaller than 500 nm, you will need an electron microscope.

为了看任何小于500纳米的物体，你需要一个电子显微镜。

youdao

A characteristic arrow point was found and first described near the present day town of Clovis, NM.

一个典型的箭头在今天的新墨西哥的克洛维斯镇被发现，这是第一次有描述。

youdao

The power of a light microscope is limited by the wavelength of visible light, which is about 500 nm.

光学显微镜的放大倍数受限于可见光的波长，大约500纳米。

youdao

By applying the finer 20-nm-class process technology, the productivity of the chips is raised over 30 percent.

ENGADGET: Samsung announces 32GB microSD card capable of 12MBps write speeds

Kepler is based on 28-nanometer (nm) process technology and succeeds the 40-nm NVIDIA Fermi architecture, which was first introduced into the market in March 2010.

ENGADGET: Primed: why nanometers matter (and why they often don't)

Intel will build the parts on its 14 nm tri-gate transistor technology.

FORBES: Intel Agrees To Serve As Foundry For Altera FPGAs