摩擦係数

1. Origins, structure, and basic meaning

• Structure: 摩擦係数 is read as まさつけいすう and means the coefficient of friction describing friction between surfaces.
• Basic usage: It can be compared across two materials or listed for a floor material in a design table.

2. Common pitfalls and similar expressions

• Comparing materials
  • 摩擦係数を比べる means comparing the friction coefficients of different materials. Example: 授業で二つの素材の摩擦係数を比べた。
• A value recorded in a table
  • 床材の摩擦係数 is the coefficient associated with a particular flooring material. Example: 設計表には床材の摩擦係数が記されている。