In fact, however, in the process of sluiceopening, the outflow is unsteady flow.
其实闸门开启过程中的出闸水流属非恒定流。
2
The veracity of sluice gate opening is not only relating to the veracity of sluice gate control, but also relate to the veracious result of emission ability of reservoir.
水库闸门开度测量的准确性，不仅关系到水库闸门控制的准确性，而且还关系到水库下泻流量的准确计算。
3
At present, the measurement of sluice gate opening usually USES the digital encoder. It has the advantage of high measuring precision and USES the absolute coding method which makes it widely used.