micron

微米,百万分之一米英释中释na unit of length equal to 10–6 metre

1 For example, if you say that something is "a few microns across", explain that a micron is one-millionth of a metre, and "about one hundredth the width of a human hair"..例如，如果您说某事物只有几微米，那么就要解释一微米是百万分之一米，大约是人头发宽度的百分之一。

2 One micron is a thousandth of a millimeter: a pinhead is about a millimeter across..一微米等于千分之一毫米。 针头直径大约一毫米。