Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/e25d57cf618f21ae899beb0018dd0a3c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 percent void space例句_percent void space英汉例句_percent void space双解例句_流逝汉英词典
Porosity is defined as the ratio of the void space in a rock to the bulk volume of that rock multiplied by 100 to express in percent. 孔隙度定义为岩石内的孔隙体积占岩石总体积的百分率。