Corresponding to spacing ratio which is from 20% to 30%, its compression strength is between 8 MPa and 28 MPa.是什么意思_Corresponding to spacing ratio which is from 20% to 30%, its compression strength is between 8 MPa and 28 MPa.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句