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public work
He spends a lot of time on public works.
skin effect (tendency of alternating current to distribute itself)
Due to the skin effect, the current mainly flows on the surface of this wire.
spectroscopy (scientific study of spectra)
Spectroscopy is an important means of investigating the properties of matter.
spectrometer
You can use a spectrometer to examine the composition of a substance.
Kyūjitai form of 人口学: demography
Demography is a branch of social science that studies the structure, distribution, and changes in human population.
sitting in a catloaf pose
My cat sitting in a catloaf pose is very cute.
high school student
He is an excellent high school student.
POP advertisement
This POP advertisement has a very noticeable design.
private school (US), public school (UK)
My child goes to a private school.
heavy industry
Japan's heavy industry is famous worldwide.
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