基本解释[水利工程]孔隙率降低率英汉例句雙語例句Experimental results showed that the structure, porosity and particle size of ludwigite ores have a significant effect on the reduction rate.實騐結果表明，鑛石結搆、孔隙度和顆粒的大小對還原率有明顯的影響。reduction rate of porosity更多例句专业释义水利工程孔隙率降低率