n.微米(=百万分之一米)

The thickness of the plastic film is only 5 micrometres.
塑料薄膜的厚度只有5微米。
The diameter of a human hair is about 70 micrometres.
人的头发直径约为70微米。
The bacteria are so small that they can only be seen with a microscope, measuring just 2 micrometres in length.
细菌非常小，只能用显微镜看到，长度仅为2微米。
The width of the blood vessel is less than 100 micrometres.
血管宽度小于100微米。
The smallest particle visible to the naked eye is around 40 micrometres.
肉眼可见的最小粒子大约为40微米。
The distance between two adjacent atoms in a crystal lattice is typically 0.25 nanometres, which is equivalent to 250 micrometres.
晶体晶格中相邻原子之间的距离通常为0.25纳米，相当于250微米。
The resolution of the scanning electron microscope is around 10 nanometres, or 0.01 micrometres.
扫描电子显微镜的分辨率约为10纳米，或0.01微米。
The wavelength of light in the visible spectrum ranges from 400 to 700 nanometres, or 0.4 to 0.7 micrometres.
可见光谱中的光波长范围从400到700纳米，或0.4到0.7微米。
The size of a red blood cell is approximately 7 micrometres in diameter.
红细胞的大小约为直径7微米。
The distance that light travels in one microsecond is equal to 300 micrometres.
光在1微秒内传播的距离等于300微米。