Request details
Edited about 2 years ago
Manami Umeda
Modification of item （ Adopted ）
Headword(English)
Parts of speech
名詞
Meaning details(1)
〈C〉(人口などの)集中
Meaning details(2)
〈U〉濃縮;〈液体の〉濃度
The concentration of the pollutant in the air is measured in ppm.
大気中の汚染物質の濃度はppmで測定されます。
Meaning details(3)
〈U〉(…への)(光線・注意などの)集中;(仕事などへの)専念,専心《+**on**+**名**》
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English - Japanese
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