Of which mixing silo is welded by the steel, a layer of antifriction cast iron scale boards is embedded in the medial wall with sunk screws.是什么意思_Of which mixing silo is welded by the steel, a layer of antifriction cast iron scale boards is embedded in the medial wall with sunk screws.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句