noun🔗Share乾燥した湖A former lake, especially a lake that has dried and habitually remains dry, opposed to playas."The farmer's field was a hardpan, a dried-up lake bed that was now too hard to plow easily. "農家の畑は乾燥した湖で、今は簡単に耕すには硬すぎる乾燥した湖底でした。geologygeographyenvironmentChat with AIVocabulary GamePractice Reading
noun🔗Share硬盤層, 難透水層A distinct layer of soil that is largely impervious to water."After a heavy rain, the water remained pooled on the surface because a layer of hardpan prevented it from soaking into the soil. "大雨の後、硬盤層が土壌への浸透を防いだため、水は表面に溜まったままだった。geologyenvironmentagricultureChat with AIVocabulary GamePractice Reading
