基本解释陽離子同根派生 Cations相关词英汉例句Hardness is caused by divalent metallic cations.硬度是由一些兩價金屬陽離子引起的。One means of accomplishing this end is to add trivalent cations to the water.實現這一目的的一種方法是將三價陽離子加入水中。Cations更多例句