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電子工学: electronics / 電子光学: electron optics
I am majoring in electronics at university.
demography
Demography is a part of social science that studies the structure, evolution, and problems of human population.
engineering department of a school
My younger brother will enter the engineering department next year.
Kyūjitai form of 人口学: demography
Demography is a branch of social science that studies the structure, distribution, and changes in human population.
Kyūjitai form of 古気候学 (“palaeoclimatology”)
He is known as an expert in palaeoclimatology.
宇宙工学: astronautics
Astronautics is a field of study related to the exploration of space and the design of spacecraft.
機械工学: mechanical engineering
My major is mechanical engineering.
mechanical engineering
systems engineering
He is an expert in systems engineering.
astronautics
He is majoring in astronautics.
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