人因工学 rényīngōngxué ergonomics Definitions Defs Origin Strokes Stroke Words Sentences Sents 人 rén noun person person; people; human being; a human因 yīn noun reason cause; reason; a factor or condition that produces a result, often contrasted with 果 guǒ工学 工學 gōngxué engineering the study of engineering; industrial science
