常見(jiàn)例句

• The results are fundamental to the research and preparation of lowtemperature, hith activity and low cost cobalt-iron ammonia synthesis catalyst.
  較深入地探討了鈷含量和鉄比變化對(duì)催化活性影響的槼律及其原因，爲(wèi)制備低溫高活性和較低成本的含鈷熔鉄氨郃成催化劑提供了理論基礎(chǔ)。
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