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In page Lin Lanying:

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She continued her study at Fukien Christian University, a top university at that time in China.[citation needed] She graduated at age 22 with a bachelor's degree in Physics as one of the best in her class. She worked at the university for 8 years,[1] four years as an assistant to teach some fundamental courses such as mechanics. Her first book was Course for Experiments in Optics and earned certification as a professor.[citation needed]