查询词典 water level

Operate the pump and bring the water level in the Gauge just below the water level in the Well tube.

用打气筒打气，使压力表中的水位升至刚好低于油井管中水位的位置。

Outside the portable boiler water level gauge and water level detectors.

锅炉采用外携式水位计和水位探测器。

After steam pressure rising to rated pressure, flush water level gauge to inspect water level.

1.8 当气压达到额定工作压力后，应冲洗水位计检查水位。

Through the computer simulation, the dynamic characteristics of gas turbine, HRSG and steam turbine under the disturbances of the load and inlet working substance parameters of HRSG were studied, and after studying the parameters and the control rule of HRSG water level control system, the parameters of the control system were predicted, and at last characteristics of the system with water level control were analyzed.

通过计算机仿真，研究了燃气轮机、余热锅炉和汽轮机在负载和余热锅炉进口工质参数扰动下的动态特性；对余热锅炉水位控制系统的参数和控制规律进行了研究，确定了控制系统的参数，并分析了系统在加入水位控制后的动态响应特性。

The drum water level is an important variable to be controlled, it is hard to get the mathematic model of the water level with adjustive process, it is characteristic of nonlinearity, instability and time lag.

而模糊控制不要求知道被控对象的精确数学模型，只需要操作人员的经验知识及操作数据，鲁棒性强，非常适合用于非线性、滞后系统的控制。

The number of grey heron Ardea cinerea L. was lower in 1990-1991 when water level was normal and birds had not bred yet than in 2000-2001 when water level was low at the reservoir and the breeding colony has existed.

与水库水位低、繁殖群已经形成的2000-2001年相比，苍鹭的种群数量在水位正常、尚未繁殖的1990-1991年相对较低。

More natatores were found in ponds before drawdown when the water level was high. In contrast, more grallatores were recorded in ponds after drawdown when the water level was low. Waterbird species number and individual density in ponds were higher during drawdown than those before and after drawdown.

养殖塘在放水前水位较高时吸引更多游禽栖息，而在放水后水位较低时吸引更多涉禽；在放水过程中，养殖塘中水鸟的种类最多，密度最大。

In this dissertation, as for some problems in flood forecast andreservoir regulation, the research had been done based on the special research topic dynamiccontrol on limit water level in flood season using theories of fuzzy optimizing theory,maximum entropy theory, entropy-weighted multi-objective decision making method, geneticalgorithm etc. And the research focused on evaporation calculation, fuzzy description ofcatchraent impoundage, fuzzy similarity calibration method, nolinear watershed concentrationmodel and error distribution maximum entropy model and risk computation of dynamiccontrol reservoir water level in flood season when the flood forecast and precipitation forecastare taken into consideration.

本文从洪水预报和汛限水位动态控制两个研究方向着手，以汛限水位动态控制研究专题的试点水库为工程背景，运用模糊优选理论、极大熵理论、熵权多目标决策法、遗传算法等理论，研究了蒸散发计算和流域蓄水容量的模糊描述、洪水预报模型参数的模糊相似校正方法、流域非线性汇流模型、误差分布的极大熵模型以及考虑洪水预报和降雨预报动态控制水库汛限水位的风险计算方法。

Disaster of embanks often happen under flood and rainfalls. In order to analyze the influences of water level variation and rainfall on the distribution of seepage and embankment's stability, in this paper, the change of seepage field under the condition of different water level or rainfall is studied based on the saturated-unsaturated seepage theory. And the safety factor of embankment's stability is calculated based on the theory of unsatutated-soil shear stress to search for the action of various factors.

堤防岸坡在洪水及降雨的影响下常常发生险情，为了分析江水位变化和降雨条件下，非饱和土体中渗流场的变化情况及其对抗滑稳定性的影响，本文运用饱和—非饱和渗流理论对不同条件下渗流场变化进行模拟，并从非饱和土抗剪强度理论出发，对抗滑稳定性进行计算，探求各种因素对其的不同影响。

The underground water level prognosticates:Before the earthquake take place, the fluctuation of rock stratum will squeeze groundwater, make the groundwater rising perhaps descended, so can observe by observing the fluctuation of underground water level.

地下水位观测：在地震发生前，因为岩层的变动，会挤压到地下水，使地下水上升或者下降，所以可以藉由观察地下水位的变动来观察。2。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。