Specialization became frequent, particularly in educational books, as the potentialities of the new school populations were realized.
图书出版进一步专业化，特别是在教育类图书中，因为人们认识到学校人数的巨大潜力。
2
In order to urge the specialization of the educational administration, the Chihli set up the Practice Office for education officers to improve their quality;