Modern long range education; Flow a medium technique; Multimedia data; Agreement.
现代远程教育；流媒体技术；多媒体数据；协议。
The activated sludge technology is a major technique for sewage treatment. Medium sludge load and continuous push flow aeration tank are adopted in the traditional activated sludge technology.
活性污泥工艺是污水处理的主要工艺，传统的活性污泥工艺采用中等污泥负荷，曝气池为连续推流式。
This technique eliminates the tube in conventional mechanical lifting, takes hollow rod as the transmission medium and oil flow channel and discharges fluid during down stroke.
该项工艺省去原机械举升中的油管，利用空心杆作为传动介质和油流通道，下冲程挤压排液。
This technique eliminates the tube in conventional mechanical lifting, takes hollow rod as the transmission medium and oil flow channel and discharges fluid during down stroke.
该项工艺省去原机械举升中的油管，利用空心杆作为传动介质和油流通道，下冲程挤压排液。
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