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オレフィン系炭化水素: (organic chemistry) alkene
Alkenes, also known as olefin hydrocarbons, play an important role in organic chemistry.
(organic chemistry) alkyne
Alkynes play an important role in organic chemistry.
(organic chemistry) alkene
Alkenes play an important role in organic chemistry.
エチレン系炭化水素: (organic chemistry) alkene
Alkenes play a very important role in organic chemistry.
(organic chemistry) alkane
Alkanes are basic components of organic chemistry.
a speed bump
There is a speed bump on this road, so please be careful when driving.
political correctness
Political correctness is an important theme in modern society.
vesper martini
He ordered a vesper at the bar.
parsnip
I am growing parsnips in my garden.
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