μ (EN)

字母，符号，符号

字母 “μ”

1. 希腊字母的第十二个字母，μ。
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   In physics equations, the Greek letter μ is often used to represent different constants.

符号 “μ”

1. （在统计学中）表示总体均值的符号
   In statistics, μ represents the average of a population, such as the average height of all students in a school.
2. （在物理学中）摩擦系数的符号。
   The equation uses μ to denote friction between surfaces, helping engineers calculate how materials will slide over each other.
3. （在物理学中）表示磁导率的符号
   The material's permeability, μ, determines how it responds to magnetic fields, which is important in designing electromagnets.

符号 “μ”

1. （在计量中）表示微米或百万分之一（10⁻⁶）的前缀。
   The size of the bacteria is about 2 μm which is very small.