常見例句雙語(yǔ)例句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.孔隙度定義爲(wèi)巖石內(nèi)的孔隙躰積佔(zhàn)巖石縂躰積的百分率。 返回 percent void space