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両性酸化物: (chemistry) amphoteric oxide
Amphoteric oxides have the characteristic of reacting with both acids and bases.
(chemistry) acidic oxide
Acidic oxides react with water to produce acids.
(chemistry) amphoteric oxide
Aluminum is an amphoteric oxide, it reacts with both acids and bases.
(chemistry) basic oxide
Basic oxides react with acids to produce salt and water.
drug abuse / substance abuse
Drug abuse is having a serious impact as a social problem.
a bioweapon, a biological weapon
The use of bioweapons is prohibited by international law.
(informal) George H. W. Bush, 41st president of the United States
Papa Bush was the 41st president of the United States.
(ecology) biodiversity
We have a responsibility to protect the biodiversity of the Earth.
protozoan
Protozoans are single-celled organisms.
Synonym of 天体物理学 (tentai butsurigaku, “astrophysics”)
He is an expert in astrophysics, and his research is highly valued around the world.
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