7:3 ratio; side-parted hair
Refers to a 7:3 proportion, most commonly used for a hairstyle where the hair is parted to one side at roughly a 7:3 ratio.
He always parts his hair in a 7:3 ratio.
この生地は七三の割合で混紡されている。
This fabric is blended at a 7:3 ratio.
side parting; hair parted to one side
Compound of 七 (seven) and 三 (three), literally 'seven-three', referring to the 7:3 ratio.