Make use of a balanced concretion technique and combine together a method outside to remove loosing and shrinking aperture in a small scaled and thick-skin ball iron piece.是什么意思_Make use of a balanced concretion technique and combine together a method outside to remove loosing and shrinking aperture in a small scaled and thick-skin ball iron piece.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句