Design and Application about Bypass Draw off System at Fully-mechanized Coal Winning
综放工作面旁路放水系统设计与应用
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Result and economic benefit of hydrocyclone used to realize draw off water in oil transfer station
水力旋流器用于中转站提前放水的效果及经济效益分析
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废水处理后,对硝基酚含量可达到国家规定的排放标准。
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False Twist Effect of the Separater with Spiral-Grooved Draw Off Jet in Rotor Spinning
气流纺螺旋曲线阻捻盘的假捻效应
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To draw off ( a liquid) by piercing a hole in a cask or other container.
钻孔汲取通过在桶或其它容器上钻孔来汲取(液体)
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随机抽取初一、初二、初三年级一至两个班,高一、高二年级一至两个班作为调查对象。
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