一刀[ittou] sword
一刀彫り[ittoubori] one-knife carving
一刀両断[ittouryoudan] cutting in two with a single stroke
印刀[intou] seal-engraving knife
円刃刀[enjintou] round-edged scalpel

快刀[kaitou] (literary) sharp sword
快刀乱麻[kaitouranma] solving a problem swiftly and skillfully
懐刀[futokorogatana] confidant
儀刀[gitou] ceremonial sword
軍刀[guntou] saber

ケーソン工法[keesonkouhou] caisson method
シールド工法[shiirudokouhou] shield method
ロボット工学[robottokougaku] robotics
圧延工場[atsuenkoujou] rolling mill
遺伝子工学[idenshikougaku] genetic engineering

印刷工[insatsukou] pressman
化学工学[kagakukougaku] chemical engineering
化学工業[kagakukougyou] chemical industry
化成工業[kaseikougyou] chemical industry
加工[kakou] manufacturing