例句與造句

1. One such crystal is the ruby, which contains trivalent chromium ions dispersed in a matrix of alumina .
   這樣的晶體有一種叫“紅寶石”，它包含的三價(jià)鉻離子彌散在氧化鋁的基體中。
2. Removal of chromium ions in an expand ion - exchange bed
   用離子交換膨脹床去除鉻離子
3. One such crystal is the ruby , which contains trivalent chromium ions dispersed in a matrix of alumina
   這樣的晶體有一種叫“紅寶石” ，它包含的三價(jià)鉻離子彌散在氧化鋁的基體中。
4. It's difficult to find chromium ion in a sentence. 用chromium ion造句挺難的