BC
A device that measures the optical density of a material. / A device that measures the specific gravity of a substance; a densimeter.
plural of self-interview
Initialism of Before Christ.
Alternative form of put one's hand up.
その寺院は紀元前400年頃に建てられ、その遺跡はいまだに考古学者を惹きつけています。
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DiQt
Free
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