A successful experience of chemical cleaning was introduced. And the researches into the properties of molasses in inhibitor for pickling was given.

 
  • 介紹了高爐化學(xué)清洗的成功經(jīng)驗;并對糖廠(chǎng)廢蜜的酸洗緩蝕性能進(jìn)行初步探討.
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目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan