溢流堰

Three small overflow dam s with different grade in an urban river were constructed and the water quality in different fixed sample points were periodically monitored.

对人工搭建的三个不同坡度的小型溢流堰堰体上下的水质进行定期监测，考察溢流堰坡度对水体溶解氧和有机污染物浓度的影响。

With the increase of gas rate of tray holes the velocity of liquid phase on plate only increases a little between caps.The clear liquid height was measured by communicating pipe. The results indicate that the distribution of liquid height is different from traditional trays. The clear liquid height increases with the liquid flow and the height of weir, and decreases with the increase of the gas rate and then return. The gradient of liquid level of CTST is less than that of sieve plate.

应用连通法对立体传质塔板的板上清液层高度进行了系统的测量，结果表明：立体传质塔板的板上清液层高度的分布和传统塔板的分布不同；其板上液层高度随溢流强度和堰高的增大而增大，随板孔气速的增加先降低后又有所回升；与筛板相比较，CTST的板上液面梯度是较小的。

Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins;2. Traditional sediment tank has been improved in three aspects by putting an adjusting flow wall in the entrance of water, a spillway trough on spillway crest along the flow direction, redesigning the flush device and an auxiliary fl ush facility.

通过在沉砂池的进水处加调流墙、在溢流堰上沿水流方向设溢流槽、对排砂装置进行改进以及设置辅助冲砂设施三个方面对传统平流式沉砂池进行了改进，设计提出了一种新型平流式沉砂池，可以大大提高沉砂池的沉淀效率，特别是对细颗粒泥砂的沉淀具有很好的效果。

LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIRS AND FLUMES.

NF X10-312-1986 用溢流堰和水槽法测量明渠中的液流。

Briefly described measures taken in purifying the liquid steel to improve steel quality such as expansion of tundish capacity,installation of stop plate,separating wall,overflow dam and ceramic filter at the tundish and adoption of high basicity flux as well as reheating of liquid steel in the tundish.

简述了通过中间包扩容；在中间包内增设挡扳、隔墙/溢流堰、陶瓷过滤器，采用高碱度中间包保护渣以及中间包钢液加热等措施，净化钢水，提高钢的质量。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。