Once a penetrating chink appears, it should firstly plug up at a vortex pot on the water side of the dyke, with auxiliary drainage added on the land side.是什么意思_Once a penetrating chink appears, it should firstly plug up at a vortex pot on the water side of the dyke, with auxiliary drainage added on the land side.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句