查询词典 water spray

Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.

本文以流域生态环境需水为主要研究对象，因此重点阐述了流域生态环境需水量的分类和计算方法；②通过分析流域生态系统构成与流域生态环境功能，并分时段和河段考虑，确定了桃花江流域生态环境需水量的组成，即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量，前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量)；后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量；③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析，提出了适合桃花江流域的生态环境需水量计算方法，即采用Tennant法计算河道内生态环境需水量，采用林地最小生态环境需水量法计算林地生态环境需水量，采用需水定额法计算农田生态环境需水量，采用水面蒸发法计算水库、池塘生态环境需水量。

Experiment through a water work model to the figure which turn on water tower from the hydraulics angle, from the hydraulics angle to the figure structure which turn on water tower and turn on water hole carry on a verification with excellent turn, emphasize research to turn on water tower dissimilarity under the size circumstance of the figure structure of enter the water bore water current flow Tai and release excessive water ability, water current to press a strong circumstance towards turn on water tower tower wall, scaleboard creation of pound at, and put forward more and so releasing excessive water circulate to adjust one degree way.

从水力学角度对放水塔的体形通过水工模型试验，从水力学角度对放水塔、放水洞的体形结构进行验证和优化，着重研究放水塔不同体形结构尺寸情况下的进水孔水流流态、泄洪能力、水流对放水塔塔壁、底板产生的冲击压强情况，并提出较好的泄洪运行调度方式。

The main content of course includes: the water cycle in the earth; the deposited of underground water; the physical characteristics and chemical components of underground water; the underground water of different imbed conditions; the supply, drainage and flowoff of underground water; the dynamic and balance of underground water; underground water in different mediums; the calculation of underground water movement; the basic knowledge of Water Statics; underground water resource; The environment problems of underground water in hydro-engineering.

主要内容有：地球上的水循环，地下水的赋存，地下水的物理性质及化学成分，不同埋藏条件的地下水，地下水的补给、排泄和径流，地下水的动态和均衡，不同介质中的地下水，地下水运动计算，水静力学基础，地下水资源，水利工程中地下水的环境问题。

Main Products: Flat water level gauge, two-color water level gauge, water level controller electrode, the electrode water-level alarm, special ballasts, electrode-type boiler water level automatic control alarm, float-type automatic control of boiler water level alarm, water tank level display device, liquid level controllers, hot-water boiler alarm, high water tank display controller, display controller pool water level, Water heating system controller.

主要产品：平板水位计、双色水位计、电极水位控制器、电极水位报警器、专用镇流器、电极式锅炉水位自动控制报警器、浮球式锅炉水位自动控制报警器、水箱液位显示仪、液位控制器、热水锅炉报警器、高位水箱显示控制器、水池水位显示控制器、供热系统补水控制器。

Applied with test of potted plant and measurement absorbency for study physiological response of activity of cell defense enzymes and lipid peroxidation of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of superoxide dismutase, catalase, antioxidant, malondialdehyde and the rate of superoxide anion(-O2) generating are mensurated under normal water condition while soil water content is 70% and light water stress while soil water content is 55% to 60% and medium water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of contents of SOD,CAT,AsA,MDA are mighty notable difference. The rate of -O2 generating is notable difference within families. The rate of -O2 generating is mighty notable difference within water grades.

为研究湿地松优良半同胞家系保护酶及脂质过氧化作用对水分逆境的生理响应，采用盆栽试验和吸光度测定结合的方法，以普通湿地松种子为对照，测定了七个湿地松半同胞家系在正常水分状态（土壤相对含水量为70%）、弱度水分胁迫（土壤相对含水量为55%~60%）、中度水分胁迫（土壤相对含水量为35%~40%）和强度水分胁迫（土壤相对含水量为20%~25%）条件下的SOD、CAT、AsA、MDA的含量和-O2产生速率，研究结果表明：无论是不同水分梯度还是不同家系水平，SOD、CAT、AsA活性和MDA含量的差异均达极显著水平，不同家系水平间-O2产生速率有显著差异，不同水分梯度间-O2产生速率差异达极显著水平。

There are one spray gun connected to a reciprocator on the base, one rotating locator set below the spray gun and locating with the sprayed barrel bottom, one circulating and purifying water curtain system opposite to the spray gun to purify the sprayed fog, and one PLC controller set on the base to regulate the spraying.

其喷枪与一安装在机座上的往复装置连接，机座上、位于喷枪的下方设有一利用喷涂钢桶之桶底进行定位并驱动喷涂钢桶转动的旋转定位装置，同时在机座之喷枪口朝对的一侧设有水帘循环净化系统，内喷机之喷涂区间的喷雾经过该水帘循环净化系统后排出，所述内喷机的喷涂调节由安装于机座上的PLC控制器控制。

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

The invention comprises sprinkler, water pipe, water valve, and pump with large flow or high-level water tank. Sprinklers are set on the water pipe evenly. The upper of water pipe is connected with the pump with large flow or high-level water tank by water valve. In installing said sprinklers are located above the spray nozzle of surface evaporative air cooler.

本发明包括喷头、水管、水阀、大流量水泵或高位水箱，水管上均匀设置喷头，水管的上游通过水阀连接大流量水泵或高位水箱，安装时所述喷头位于表面蒸发式空冷器喷淋管的上方。

Under soil water stress conditions, the photosynthesis rate, water useefficiency and light compensation point of Atriplex canescens obviouslyreduced, and its dark respiration rate weakened. In the treatments in July, theaccumulative and average value of daily Pn from high to low is: light soil water stress＞no soil water stress＞medium soil water stress＞heavy soil water stress, the valueare 7.162μmolm~(-2)s~(-1)、6.106μmolm~(-2)s~(-1)、6.103μmolm~(-2)s~(-1) and 1.761μmolm~(-2)s~(-1), respectively. In the treatments in August, the accumulative and average value ofdaily Pn from high to low is: light soil water stress＞medium soil water stress＞heavy soil water stress＞no soil water stress, the value are 7.378μmolm~(-2)s~(-1)、4.738μmolm~(-2)s~(-1)、1.794μmolm~(-2)s~(-1) and 1.705μmolm~(-2)s~(-1), respectively.

在土壤水分胁迫下四翅滨藜的净光合速率、水分利用效率、和光补偿点显著降低，暗呼吸速率减弱。7月份各处理Pn全天的累计值和平均值的大小顺序为：轻度土壤水分胁迫＞无土壤水分胁迫＞中度土壤水分胁迫＞重度土壤水分胁迫，它们的值分别为：7.162μmolm~(-2)s~(-1)、6.106μmolm~(-2)s~(-1)、6.103μmolm~(-2)s~(-1)和1.761μmolm~(-2)s~(-1)。8月份各处理的Pn全天累计值和平均值的大小顺序为：轻度土壤水分胁迫＞中度土壤水分胁迫＞重度土壤水分胁迫＞无土壤水分胁迫，它们的值分别为：7.378μmolm~(-2)s~(-1)、4.738μmolm~(-2)s~(-1)、1.794μmolm~(-2)s~(-1)和1.705μmolm~(-2)s~(-1)。9月份四翅滨藜的Pn变化趋势于8月份的变化曲线基本相似，唯一不同的变化就是各个处理的Pn比8月份的要高，这可能于9月份气温降低，湿度增大有关。

The paper is based on the theory of inter-function between water and rock, and losing energy in rock mass, brought forward that the water flow has head loss during water flow intruding through the coal seam effective water-resisting layer and energy waste concept for splitting rock mass, and analyzed the form of the remaining water pressure. Through the simulation experiment in the preventing water capability of water-resisting rocks in the coal seam scaleboard, studied the law, character of the losing in water head waste and the relation to pressure, water-resisting of hydrogeology and engineering geology character. Brought forward the new method of calculating the water inrush coefficient.

通过理论分析和实验研究，本文得出以下结论：高承压水在沿煤层底板隔水层导升过程中存在着明显的压力水头损失；同一地层条件下，煤层底板承压水水头压力越大其导升过程中的水头压力损耗就越大；同一水头压力条件下，地层的渗透性越差其阻水能力越强，水流导升过程中的水头压力损耗也越大；在同一介质中，当初始水头压力不同时，水流在导升过程中水头压力的衰减不同，在同一隔水介质中底板含水层水头压力越大其沿隔水层导升过程中的水头损耗也就越大，水头损耗随底板隔水层水头压力增加而呈递增趋势，另外它们相应的水头衰减速率也呈递增趋势，煤层底板隔

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。