noun ダウンロード 🔗共有 ムーラン A cylindrical, vertical shaft that extends through a glacier and is carved by meltwater from the glacier’s surface. Examples : "During the summer melt, water rushed into the glacier's moulins, disappearing into the icy depths. " 夏の融解の間、水は氷河のムーランに流れ込み、氷の深みに消えていった。 geology geography environment nature AIとチャット語彙ゲーム読解練習