yield of flotation cleaned coal
yield of flotation cleaned coal
浮选精煤得率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The cleaned coal yield before and after ultrasonic treatment, the effect of flotation desulfurization and flotation speed were studied.
笔者对煤泥超声处理前后浮选的精煤产率、浮选脱硫效果、浮选速度等方面进行了试验研究。
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