Kjeldahl flask
A star-shaped (concave polygonal) nanoparticle
(Singapore, colloquial, informal) Boring.
(chemistry) A round-bottomed flask that has a very long neck; it is used in the Kjeldahl method
plural of peltast
滴定の前に、彼女は不純物を取り除くために蒸留水でケルダールフラスコをすすいだ。
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