Qingshuitang

常見(jiàn)例句

• Copper and lead in Qingshuitang lead zinc ore were separated by floatation separation with ternary agent, its experiment index is higher than that with potassium dichromate.
  用三元合劑對(duì)清水塘鉛鋅礦進(jìn)行銅鉛分離浮選,其試驗(yàn)指標(biāo)比以前用重鉻酸鉀的試驗(yàn)指標(biāo)高,藥劑用量低,避免鉻的污染,改善生產(chǎn)環(huán)
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