查询词典 water pressure

Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

The paper carried out combination calculation on two kinds unsteady flow problems of pressure water diversion of hydropower station (i.e. pressure fluctuation of water hammer and mass fluctuation of surge chamber), which changed many analytical error caused by considered these two phenomena separately, and such result meets the inherent rule of pressure water diversion system transient of hydropower station much more than before.

2实现了水电站有压引水系统中两种非恒定流问题(即水锤的压力波动和调压室的质量波动)的联合计算，改变了把这两种现象分开单独考虑所带来的分析误差，这样的计算结果更加符合水电站有压引水系统中过渡过程的内在规律。

The method comprises steps as follows:(1) Chinese herbal medicines are taken and added with purified water for soaking, with the material-to-water ratio of 1:10;(2) the Chinese herbal medicines with the purified water are placed in a microwave heating system; the power of the microwave and the radiation extraction time are controlled;(3) leaching liquor is poured out and put into a centrifuge for centrifugation to obtain the Chinese herbal medicine water extract;(4) polyethersulfone ultrafiltration film is arranged in an ultrafilter; the Chinese herbal medicine water extract is poured into the ultrafilter and placed in a normal pressure type microwave heating system; and (5) the power of the microwave and the radiation extraction time are controlled and the pressure of nitrogen is regulated so as to obtain the purified Chinese herbal medicine water extract.

本发明公开了一种利用微波辐射改善中草药水提液膜超滤过程的方法，该方法由以下步骤完成：(1)取中草药材以1∶10的料液比加入纯净水，浸泡；(2)置于微波加热系统，控制微波功率和辐射提取时间；(3)倾出浸提液；然后用离心机离心得中草药水提液；(4)超滤器内置有聚醚砜超滤膜，将中草药水提液倒入超滤器并置于常压式微波加热系统；(5)控制微波功率和辐射提取时间，调节氮气压力，得到纯化的中草药水提液。

For different surface roughness of electrodes and glycol concentration of glycol/water mixture, pressurized water breakdown experiments are carried out. Experimental results suggest that Mirza's formula is valid and independent of surface roughness and glycol concentration, and it is accumulative for surface polish, glycol additive, and pressurization for the capability to improve electrical breakdown strength. Moreover, the increase of electrical breakdown strength of water dielectric for surface polish is explained with bubble breakdown. Especially, highest stress of 235.5kV/cm observed in glycol/water mixture with a glycol concentration of 80% at a hydrostatic pressure of 12atm is about one time greater than that in pure water at constant pressure.

通过改变电极表面光滑程度和乙二醇浓度，分别进行了加压水介质击穿实验，证实了不同电极表面光滑程度和乙二醇浓度下Mirza关系式仍成立，抛光电极表面、添加乙二醇与加压在提高水介质电击穿能力方面具有可叠加性，将抛光电极表面、添加乙二醇与加压分别进行了比较，特别，在静压12atm、乙二醇浓度80%下，得到实测最高击穿场强为235.5kV/cm，其有效时间归一化后的击穿场强比常压下纯水的相应值提高了112.2%，运用气泡击穿模型对抛光提高水介质击穿场强进行了物理解释。

All the analysis was done using SAS EM 4.1 software. The prevalence of tracheobronchitis were higher in spring and autumn. Average atmospheric pressure, average temperature, highest air temperature, lowest air temperature, water-vapour pressure, degradation of visibility were positively correlated with the prevalence of tracheobronchitis. Factors that affected the incidence of tracheobronchitis were average atmospheric pressure, degradation of visibility, daily temperature difference and water-vapour pressure.

结果］湖州市气管支气管炎门诊人数存在明显的季节分布差异，夏季和冬季是此类疾病的2个高发季节，而春季和秋季门诊人数较少；其门诊人数与平均气压、平均气温、最高气温、最低气温、水汽压、大气能见度等气象条件存在较好相关性；影响气管支气管炎门诊人数的主要气象因子有平均气压、能见度、日较差和水汽压，当平均气压≥1020.33hPa且能见度＜6.2km时，气管支气管炎门诊人数最高。

The pressure drop along the horizontal wellhole was combined with the critical pressure drop of the bottom water-driven reservoirs, thus the relation between the critical pressure and the critical flow rate when the horizontal well originally put into production was researched,which provide a reference for the design.of the deliverability of the horizontal well used in the bottom water reservoir existing the bottom water coning.

把水平段压降和底水油藏临界压力结合起来，研究了考虑水平段压降时的水平井初期生产的临界压力和临界产量的关系，为存在底水锥进油藏水平井产能设计提供了参考依据。

Lever Ball Float Steam Traps are not subject to the greatest advantage of pressure, temperature, condensate water flow fluctuations, continuous drainage, water that is exclusive, the Butterfly Valves minimum undercooling of 0 ℃, heating equipment can achieve the best efficiency; Lever Ball Float Steam Traps seat total in the level below, the formation of water seal, no steam leakage; its minimum working pressure 0.01Mpa, the biggest back-pressure rate of ≤ 85%; house with an exhaust device, lever float steam trap uses the most advanced components as the automatic emptying of diaphragm valves, can automatically rule out non-condensing gas, very sensitive, high-quality work and long service life.

杠杆浮球式蒸汽疏水阀的最大优点是不受压力、温度、冷凝水流量波动的影响，连续排水，有水即排，最小过冷度为0℃，能使加热设备达到最佳工作效率；杠杆浮球式蒸汽疏水阀的阀座总处于液位以下，形成水封，无蒸汽泄漏；它的最低工作压力0.01Mpa，最大背压率≤85%；内部带有排气装置，杠杆浮球式蒸汽疏水阀采用最先进的膜盒元件做为自动排空气阀，能自动排除不凝结气体，非常灵敏，工作质量高，使用寿命长。

In the design of the supercritical high pressure feed water heater,choose the two kinds of materials of WB36 and 15CrMo at the same time,the high pressure feed water heater must carry on the whole heat treatment,so the anneal temperature of WB36 must be raised above 600 ℃ to satisfy the request of the whole function of the high pressure feed water heater.

在超临界高压加热器的设计中，同时选用了WB36和15CrMo两种材料，由于高压加热器必须进行整体热处理，因此必须提高WB36焊接退火温度至600℃以上来满足高压加热器整体性能的要求。

Second, the main products the company led to disinfection products, mainly include:84 disinfectant, Lysol water, iodophor, and strengthen glutaraldehyde, disinfection tablets, long-ching, Al iodine, L-1-type measuring chlorine test strip , L-2 type Glutaraldehyde indicator, 121 , 132 pressure steam sterilization chemical indicator, pressure sterilization chemical instruction tape, ultraviolet intensity of instruction cards, Sanger disinfectant equipment, the Su-Ying disinfectant, gas dual-use high-pressure water washing machine and many other disinfection products and toilet cleaning, high-grade porcelain Jie Ling, glass of water, power washing supplies powder decontamination involving medicine, day two of the field.

公司以消毒制品为主导，主要有：利尔康84消毒液、来苏水、碘伏、强化戊二醛、消毒片、久清、艾尔碘、L-1型测氯试纸、L-2型戊二醛指示卡、121℃、132℃压力蒸气灭菌化学指示卡、压力灭菌化学指示胶带、紫外线强度指示卡、森格尔器械消毒液、樱之素消毒液、气水两用高压冲洗枪等多种消毒制品和厕洁、高档洁瓷灵、玻璃水、强力去污粉等洗涤用品涉及医药、日化两大领域。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。