The comparison test with MPD petroleum sodium sulphonate collector on Qidashan lean hematite ore showed a collector cost reduction of25%, a collector consumption reduction of48% and a good flotation effect.是什么意思_The comparison test with MPD petroleum sodium sulphonate collector on Qidashan lean hematite ore showed a collector cost reduction of25%, a collector consumption reduction of48% and a good flotation effect.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句