Based on the study in the water head area in Changle County, the paper emphasize the significance of protecting the water head area.
在实地考察昌乐县水源地现状的基础上，提出该县水源地保护的意义。
The water table discrepancies between sub-streams vary quickly, and there is no uniform groundwater head for an area.
地下河系统之间水位差异变化大，一般没有统一区域地下水位，难以区分补给资源、储存资源。
This paper describes the principles of ecotype hydraulic protection and related treatment techniques for gentle slope, steep slope, gully head, scouring gully, water catchment area and revetment.
文章阐述了生态型水工保护的原则，从缓坡、陡坡、沟头、冲沟、汇水塬、护坡、崾岘的处理等方面，介绍了生态型水工保护技术。
We wore our volunteer press credentials around our neck and were granted access to a fenced-off area across the street from the dragon-head and very near the Water Cube and Bird's Nest.
我们将志愿者证挂在脖子上，之后被允许进入同龙头建筑物仅隔一条街的一个用栅栏围起来的地方，这个地方非常接近水立方和鸟巢。
A method of arranging orifices with varied opening area according to the pressure variation in the pipe is suggested in order to ensure the uniformity of water-distribution in the low head filter.
并提出按管内压头来改变开孔面积的布孔方法，以便保证用于低水头滤池时布水的均匀性。
An effective pre-drainage system in a limited area that has a high water head and huge inflow is important to prevent flooding accidents during subsea tunnelling.
一个有效的预排水系统在一个有限的区域内，有一个高水头，巨大的流入，重要的是要防止水浸事故发生的海底隧道。
A method of arranging orifices with varied opening area according to the pressure variation in the pipe is suggested in order to ensure the uniformity of water-distribution in the low head fi...
并提出按管内压头来改变开孔面积的布孔方法，以便保证用于低水头滤池时布水的均匀性。
A method of arranging orifices with varied opening area according to the pressure variation in the pipe is suggested in order to ensure the uniformity of water-distribution in the low head fi...
并提出按管内压头来改变开孔面积的布孔方法，以便保证用于低水头滤池时布水的均匀性。
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