A brief survey is given about the principles of structural design and lectotype of buildings on goafs, and related suggestions are presented for the walling construction measures.是什么意思_A brief survey is given about the principles of structural design and lectotype of buildings on goafs, and related suggestions are presented for the walling construction measures.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句