精密加工 せいみつかこう Meanings Noun precision machining; precision cutting Kanji 精 spirit. Read as セイ. 密 dense. Read as ミツ. 加 add 工 craft. Read as コウ. Words containing 精密加工 超精密加工 (ちょうせいみつかこう) ultra-precision machining Jinuma: Japanese Dictionary · Word lists