Gunnison's prairie dog
(chemistry) any nitrene
Cynomys gunnisoni, a species of prairie dog primarily distributed in the Four Corners region of the United States.
(geometry) A configuration of 15 lines and 15 points, having three points on each line and three lines through each point, and containing no triangles.
Having a single mode of operation
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DiQt（ディクト）
無料
★★★★★★★★★★
