Nitrogen adsorption isotherm(77K) was used to measure the BET surfacearea,pore surface and pore volume of four pulverized coals from pyrolysis process.是什么意思_Nitrogen adsorption isotherm(77K) was used to measure the BET surfacearea,pore surface and pore volume of four pulverized coals from pyrolysis process.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句