hanging valley
(geology) A valley that terminates at one end by a steep drop to a much lower valley.
A missed abortion.
(computing) An entry in a file system that acts like a physical device without having the corresponding hardware.
A strong, lightweight material consisting of an inner layer of polystyrene clad with outer facing of either white clay-coated paper or brown kraft paper.
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DiQt（ディクト）
無料
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