The level of the water table also fluctuates slightly with the season.
潜水面的高度也随著季节而稍有波动。
It describes the fuzzy PID-type controller design of the alkali boiler water level, the build of 2-d control table, the realization of the computer design and simulation of the controller.
以碱回收炉的水位控制为例具体论述调整系统控制量的模糊pid控制器的设计、2- D控制表的建立、以及控制器计算机设计与仿真的实现。
The upper level of water in the saturated zone is called the water table.
饱和层里的上水平线叫做地下水位。
For effective drainage therefore, the entire site should be located above flood level at a minimum of 3 m above the water table, preferably on a gently sloping area.
因此需要注意，为了保证有效的排水，整个地点应当高过洪水水位、高于地下水位至少3米，最好是在地势略微倾斜的地区。
According to the low value abnormality we have put forward the method of finding water in places of mountains, steep slope and hill where water table level is embebed deeply.
提出了在山高、坡陡、地下水位埋深较大的山丘地区找水，应以寻找低值异常为主的观点，并分析了形成低值异常的基本原因。
Ultrasonic liquid level gauge used to real-time measure the upper level and tail level of the two sections , then the computer calculated average water level, gradient of water table and discharge;
用超声波液位计将测流渠段的上下游两断面水位实时测出，再用计算机分时段算出平均水位、水面坡降及流量；
Ultrasonic liquid level gauge used to real-time measure the upper level and tail level of the two sections , then the computer calculated average water level, gradient of water table and discharge;
用超声波液位计将测流渠段的上下游两断面水位实时测出，再用计算机分时段算出平均水位、水面坡降及流量；
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