His interests ranged everywhere and all his investigations were recorded in the faultless draughtsmanship that makes his surviving notebooks so interesting. 他的兴趣包罗万象,他所有的研究都以完美尤缺的草图形式记录了下来,这使得他留下的它记趣味盎然。
Draughtsmanship \Draughts"man*ship\, n. The office, art, or work of a draughtsman.