...Thereis, for instance, a splendid red light sometimes seen in displays offireworks, due to the metal strontium...
Robert Stawell Ball 「The Story of the Heavens」
...The three metals, strontium, sodium, and magnesium, may thus beidentified by the colours they produce when incandescent...
Robert Stawell Ball 「The Story of the Heavens」
...We may mention calcium, iron, hydrogen, sodium,carbon, nickel, magnesium, cobalt, aluminium, chromium, strontium,manganese, copper, zinc, cadmium, silver, tin, lead, potassium...
Robert Stawell Ball 「The Story of the Heavens」
ランダム例文:
tram defensible usable
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