基本解釋溝槽牀接縫灰漿詞組短語(yǔ)短語(yǔ)furrowed d bed joint mortar 溝槽牀接縫灰漿furrowed bed joint mortar更多詞組專業(yè)釋義土木建築工程溝槽牀接縫灰漿