muscovite
That promotes the growth of osteoblasts
simple past tense and past participle of step on
A device that adsorbs nitrogen oxides produced by a lean-burn engine, such as a diesel.
(mineralogy) A pale brown mineral of the mica group, being a basic potassium aluminosilicate with the chemical formula KAl₂(Si₃Al)O₁₀(OH,F)₂; used as an electrical insulator etc.
地質学者は顕微鏡で薄くはがれやすい白雲母(淡褐色の雲母で、塩基性のカリウムアルミノ珪酸塩、化学式KAl2(Si3Al)O10(OH,F)2)の層を注意深く観察した。
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