pearlstone
常見例句
- Comparing expaneded AN with common AN and pearlstone,the micro air bubble distribution and its regularity in expanded AN are given which provide powerful basis...
與普通硝酸銨及珍珠巖相比較,微氣泡在膨化硝酸銨內(nèi)適當(dāng)?shù)姆植紴樽悦艋晒μ峁┝擞辛Φ谋ＷC。 返回 pearlstone