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esker ['eskə] n
desert. 冰河沙堆
earth.sc. 蛇〔形〕丘
eng.geol. 蛇行丘
geol. 蛇形丘
oil 蛇丘
tech. 冰河砂堆;
esker: 14 phrases in 4 subjects
Desert science1
Engineering geology2
Oil / petroleum7
Technology4