The structure features and operating principle of 500 t/d active lime double shell shaft kiln are introduced. The furnace building process of the kiln is described.是什么意思_The structure features and operating principle of 500 t/d active lime double shell shaft kiln are introduced. The furnace building process of the kiln is described.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句