knife fileとは 意味・読み方・使い方

To provide a new method to surely improve sharpness of a kitchen knife simply using a file plate and (water resistant) paper file by even an amateur, and a cutting board with the file plate and the (water resistant) paper file.例文帳に追加

素人でも簡単に鑢板、（耐水）ペーパーヤスリを用いて確実に包丁の切れ味を改良する新しい方法とその鑢板及び（耐水）ペーパーヤスリを備えた俎板を提供すること。 - 特許庁

This method to improve sharpness of the kitchen knife is very simple for the amateur, and the sharpness is overwhelmingly improved just only by inclining the kitchen knife at an appropriate angle and lightly stroking on the file plate 2a, or (water resistant) paper file 2b in the right or left direction for several times.例文帳に追加

包丁の切れ味を改良させる本方法は、素人にとっても極めて簡単で、包丁を適度な角度に寝かせて、鑢板２ａ、（耐水）ペーパーヤスリ２ｂの上を右か左方向に軽く数回撫でるだけで、切れ味は圧倒的に改良される。 - 特許庁