noun
film thickness; coating thickness
Technical term used in engineering, materials science, and manufacturing to refer to the thickness of a thin film, layer, or coating.
この装置は膜厚をナノメートル単位で測定できます。
This device can measure film thickness in nanometers.
塗装の膜厚が均一でないと、仕上がりにムラが出る。
If the coating thickness is not uniform, the finish will be uneven.