uncontaminated
Not contaminated; unpolluted.
(organic chemistry) Any of several isomeric tricyclic aromatic heterocycles derived from anthracene by replacement of two CH groups by nitrogen atoms
An electromagnetic machine in which several magnetic poles exist.
(historical) In Holland, and, until the 19th century, also in Cape Colony, a council to assist a local magistrate in the government of rural districts. / (historical) A member of such a council.
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DiQt（ディクト）
無料
★★★★★★★★★★
