巩县第三区八陵村农民曹万通谈,他的红薯地窖有三丈深(这是在岭地上),每年往窖内储藏红薯时,总是将窖裹打扫的干干净净。可是所藏的红薯,不到旧历年节,大部份都已腐烂。有一次拿着油蹬下窖,到窖底灯就灭了,再也燃不着,这证明窖底已无氧气。根据这个理由,他就在原来的窑筒壁上,对着窖门,自上而下刻了一个深 Tomb of the third village of Gong County farmers Cao Wantong talk about his sweet potato cellar has three Zhang deep (which is in the ridge), every year to store sweet potato cellar, the cellar wrapped always cleaned. However, the hidden sweet potato, less than the old year of the Chuseok, most of them have been decayed. Once with the oil pedal down the cellar, the cellar lamp was extinguished, no longer burned, which proves that the cellar has no oxygen. For this reason, he was in the original kiln wall, facing the cellar door, engraved from top to bottom, a deep