例句與造句

1. The result showed : the main cause of color change is the formation and annihilation of shallow color centers ; there exist nickel and cobalt ions in the samples ' lattice ; and the impurity ions contribute a lot to the formation of shallow color centers
   結(jié)果表明：變色的主要原因是淺色心的產(chǎn)生與湮滅；樣品晶格中存在鎳、鈷離子；雜質(zhì)離子的存在有利于形成各種淺色心。
2. On the basis of catalyzing mechanism , it can raise the reaction efficiency of sodium sulfite and reduce the remains of sodium sulfite , and has evident catalyzing action by adding bivalent nickel ions and bivalent cobalt ions into the water under the condition of weak alkali
   根據(jù)催化機(jī)理，在弱堿條件下加入二價(jià)鎳離子和二價(jià)鈷離子能提高水中亞硫酸鈉的反應(yīng)效率，降低水中亞硫酸鈉的殘余量，對(duì)亞硫酸鈉的除氧效果具有明顯催化作用。
3. It's difficult to find cobalt ions in a sentence. 用cobalt ions造句挺難的