The severe drought, the 1st seen in the past half century, has kept the water level in the Yangtze the lowest since 2003, when the Three Gorges Dam went into operation.
此次旱情属50年一遇，目前，长江水位处于三峡大坝2003年运营以来的最低值。
Following normal operation, the reservoir's level dropped as water was released downstream during the winter and early spring 2008 and was at a low level when the Wenchuan earthquake occurred.
水库正常运转以后，因为在冬季和2008年春天早期的时候向下游放水，水库水位一直在下降。而汶川地震发生的时候，水库正处在一个低的水位上。
One should pay more attention to the cleaning work to chillers to improve economic operation level of water chillers.
运行管理人员应该注意对机组加强清洗保养工作，以提高机组的经济运行水平。
According to the flux, water level, temperature, etc, PLC sends out command to start or stop pumps, and keeps the system in normal operation condition.
PLC根据所采集的流量、水位、温度等条件自动控制开、停泵的台数，以确保清水供水系统的正常运行。
Since Gongzui Hydropower Station put into operation, the tail water level always threaten the flood control safety against pow er-house (in di cating powerhouse on the ground).
龚嘴水电站自运行以来，尾水位的抬高一直威胁着厂房(指地面厂房)的消防安全。
Fill in operation form and record water level, pressure, temperature, quantity of fuel, etc. And keep boiler running smoothly.
认真填写各种运行记录及记载水位、压力、温度、燃油量等。
Device features: high softening rate, low outlet water hardness, simple and convenient regeneration and operation, high automation level.
装置特点：软化效率高、出水硬度低、再生操作简单方便、自动化程度高。
It possesses the characters of high head, high velocity, long operation time and large variation range of water level.
它具有水头高、流速大、运行时间长、水位变幅大等特点。
The article introduces the automatic control of water level in acid water pool and its ease of operation and economize on energy.
本文介绍酸水池水位采用自动控制，便于操作和节约能源。
The river channel change, the bed load and bed material armoring, and the water level lowering after the operation of the Gezhouba project are analyzed based on the topographic and hydrologic data.
根据实测地形和水文泥沙资料，分析了葛洲坝枢纽运用后宜昌河段的河床冲淤变化、推移质和床沙的粗化以及枯水位的变化。
To ensure the safety of the dam, countermeasures including low water-level operation of the dam and sluicing-siltationmethod with coal ash in front of the dam were presented.
以闸前常水位运行渠道为例，设计了水位-流量串级控制器，对其传递函数进行了分析，给出了串级反馈控制器的设计准则。
It is indicated that it is important to choose the initial control water level in the air chamber for the safe operation of the system.
结果表明，气压室内初始气压(或水位)的选择对系统的安全运行至关重要。
In this article, the author introduces its features, operation principles, and application in hydrological monitoring, focusing on its advantages in water level telemetry and dam safety monitoring.
介绍了在光纤光栅技术平台上研制出的传感器的特点、工作原理及其在水利监测中的应用，着重于光纤光栅传感技术在水位遥测及大坝安全监测上的应用。
Therefore, the maintenance of the boiler water level in a given range is the protection necessary for safe operation of boilers, boiler properly one of the key indicators of.
因此，维持锅炉汽包水位在给定范围内是保护锅炉安全运行的必要条件，也是锅炉正常运行的主要指标之一。
These are quite dangerous, so the drum water level control is necessary to ensure normal operation.
这些都相当危险，因此控制好汽包水位是保证锅炉正常运行的重要环节。
This system can effectively eliminate water during the various problems, so that the boiler water level in a given range, to ensure the safe operation of the boiler.
本系统能够有效克服给水过程中出现的各种问题，使锅炉汽包水位在给定的范围内，保证锅炉的安全运行。
From the point of view of energy-saving, this peper gives a quantitive analysis of the impact of no-water-level operation of feedwater heaters on the economic performance of power plants.
本文从节能角度出发，定量地分析了加热器无水位运行对火电厂热经济性的影响。
Reply: : The describing is changed to "It shall ensure continuous operation, intermittent operation and resume after long-term shutdowm under conditions exposing from the water level."
答复：应为“潜水电机露出液面的条件下连续运行、间歇运行和长期停止状态后恢复运行。
Submersible sewage pump in water and placed in appropriate vertical can also be tilted, the level of the use of running for continuous operation.
潜污电泵在水中以立式放置为宜，也可倾斜，水平使用运行方式为连续运转。
Drum water level is an important index to ensure the safety and stable operation for industrial boilers.
汽包水位是工业锅炉安全、稳定运行的重要指标。
A high pressure air chamber nucleon water level meter has been developed, with detailed introduction to its working principle, various functions, error analysis and operation mode.
阐述了高压汽包核子水位计的工作原理、性能、误差分析及应用情况。
The inverse dynamics effects, which are caused by shrink and swell under transient, startup and lower power operation, make the water level difficult to control.
SG在瞬态、启动和低功率运行工况下的“收缩”与“膨胀”现象引起的逆动力学效应使SG的水位控制变得复杂。
The inverse dynamics effects, which are caused by shrink and swell under transient, startup and lower power operation, make the water level difficult to control.
SG在瞬态、启动和低功率运行工况下的“收缩”与“膨胀”现象引起的逆动力学效应使SG的水位控制变得复杂。
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