Kindergarten was actually a very formalized system of education, established by a man named Friedrich Froebel, who was a crystallographer in the 19th century.
幼稚园事实上是非常正式的教育系体之一，是由一位名为福禄。贝尔的人所建立。
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Franklin's break came when she was hired by King's College in 1950 to work on the DNA project as a crystallographer—mapping the location of atoms within a structure.
Crystallographer Alan Mackay built a model with circles representing atoms at the corners of Penroses tiles and calculated what sort of diffraction pattern it would produce.