查询词典 water system

Discussion on membrane formation mechanismBased on the Flory-Huggins theory, Phase equilibrium equations of PVDF/DMAc/water ternary system were wrote out, and the binodal and spinodal lines in the phase diagrams of the system were obtained via numerical calculation. Combined the kinetic description and the thermodynamic phase diagram, membrane formation process were analyzed, which prepared the theoretical foundation for the further membrane formation mechanism research.

论文主要从如下四个方面展开：(1)PVDF疏水膜成膜分相机理探讨基于Flory-Huggins理论推导了三元制膜体系凝胶分相组成的线性表达式，并通过&浊点法&测定了PVDF／N，N-二甲基乙酰胺／水／成膜体系的凝胶边界线组成，通过对实验数据的拟合，得到了简捷直观的线性表达式，ln(φ_1)/(φ_3)=bln(φ_2)/(φ_3)+a，误差小于3％。

It was observed that the optimum temperature for the fluorous biphasic regioselective nitrations of toluene, ethylbenzene, flurobenzene, chlorobenzene, bromobenzene, odobenzene and diphenyl ether were 80℃, 60℃, 60℃, 60℃, 80℃, 80℃ and 70℃ respectively. The catalyst had almost no activity when the reaction system contained 25% of water. Simultaneously, increasing the volume ratio of fluorous phase and organic phase in the system in which the fluorous phase can miscible with organic phase could decrease ortho-para ratio.

发现甲苯、乙苯、氟苯、氯苯、溴苯、碘苯加二苯醚的最佳氟两相选择性硝化温度分别为80℃、60℃、60℃、60℃、80℃、80℃和70℃，当加入25%的水时，催化剂已基本失去活性，在氟相和有机相能完全互溶的体系中升高氟相和有机相的体积比有利于降低邻对位比值。

An activating electrode system with brushy nozzle-plate structure is placed prior to pulsed discharge electrode system to activate water vapor. The purpose is to produce more radicals in relation to H2O to increase DeSO2 efficiency in the process of DeSO2 by pulsed discharge.

在脉冲放电电极系统前端添加一套由芒刺状尖嘴和板电极构成的活化电极系统，对水蒸气进行活化处理，使在脉冲放电脱硫过程中产生更多与水有关的自由基，从而提高脉冲放电脱硫效率。

The discussion covers IMPCOCA110 gas carburator, ALTRONIC breakerless ignition system, and the safety features of KNG 3200E gas engines, including protective system, oil-pressure safety control, and water-level safety control.

本文主要介绍国内各油田用的小功率天然气机采用较多的美国IMPCO CA110型气体燃料混合器和ALTRONIC无触点点火系统以及日本KNG 3200E天然气机的安全保护装置、油压低停车装置和水位低停车装置的结构特点及工作原理，并提出有关发展天然气机的几点建议。

To experiment on 66mm, 75mm returned flow hydrocyclone and 70mm uniflow hydrocyclone (cone-shaped, columniform) in water-sand intermixture, then each capacity, separation performance and correlative parameter's change rules are obtained and compared. Building up overflow system in series of 66mm and 75mm hydrocyclone, separating property and partition curve of the system through experiment are gained.

分别对66mm、75mm返流式水力旋流器和70mm直流式水力旋流器四种水力旋流器进行砂水实验研究，得出各自的生产能力、分离性能及相关参数的变化规律，并进行比较；组成返流式水力旋流器溢流串联系统，进行性能测试，得出系统的分离性能和级效率曲线。

And the relief valve , pressure maintaining valve with gas tank are adopted in auto water-spraying system and the advantages of adopting gasoloid extinguishant in main outfire system are explained.

同时 ，介绍了自动喷水系统采用减压阀、稳压泵带气压罐和主体灭火系统采用EBM气熔胶灭火剂的优点。

By means of simulation of complex nonlinear model of hydroturbine generating unit, the impact of the control law of hydraulic turbine governor on power system stability is researched, and a control idea of adopting water pressure feedback to improve power system stability is proposed.

通过对水电机组复杂非线性模型的仿真，研究了水轮机调速器控制规律对电力系统稳定性的影响，并提出了采用水压反馈改善电力系统稳定的控制思想。

This thsis analyzes water-saving irrigation technology economical character, technology providers' behaviors, supplying model, supplying efficiency, system inspiritment and technology application affecting factors on the basis of resource economics, system economics, informition economics and sustainable development theory.

本文以资源经济学、制度经济学、信息经济学和可持续发展理论为指导，对节水灌溉技术的经济特征、技术供给主体的供给行为、供给模式和供给效率、技术应用中的制度激励等进行剖析，对影响节水灌溉技术应用的因素进行了实证分析。

To solve the problem of handling the large agricultural irrigation works is to follow the principle of being in sequence adhere to the strict plan.First,subsidy system should be established from centre to local area to return their old loan and fully use their saved cost.Then.we should reform the property right of the irrigatory works and the system of the levying of the water—fee,based on the villager's last commondecision.

首先应建立中央和省级政府对大型农村水利设施的补贴制度，通过各级转移支付集中解决大型农用水利设施的历史负债，消化其巨大的沉淀成本，并在全体村民享有最终决策权的基础上，完善水利设施的产权改革，以及完善水费征收制度。

Read and write of flash disk as USB host.According to the request of this subject, the system hardware and software for the slave device, and the communication interface to the master PC are developed. Detailed works are as follows: in order to implement the measurement principle in the system, flow-liquid levelmethod is used;velocity of flow is measured through rotor Kinemometer;water level is surveyedvia RS485 interface and pressure sensor;the C8051F060 chip which is in high performance andintegration, produced by Silicon Laboratories Company as master chip is used to capture and measure the width of impulses, so singals of flow velocity are collected and disposed;the 4×4 matrix keyboard and LCD are used in the part of man-machine interface which are easy to input, legible to read, various to display, comfy to be accepted and plain to show measure and inquiry results;FRAM memory FM3164 is used to carry out the non-volatile memory of data and accurate real-time clock.;SL811HST chip is used as USB host which can read and write flash disk,thereby a kind of adscititious mass storage is accomplished .

根据研制任务的要求，课题期间主要完成了下位机系统硬件和软件，设计了与上位机的通讯界面，所做的具体工作包括：测量原理在系统中的实现，采用了流速—水位计算法，通过旋桨式流速仪来测量流速，通过RS485接口与压力变送器通讯测量水位；主控制芯片采用了Silicon Laboratories公司的高性能、高集成度C8051F060芯片，利用其捕捉测脉宽的特性，实现了流速信号的采集和处理；人机接口部分采用了4×4矩阵键盘和LCD显示，输入方便，读数清晰，显示多样化，信息量大，易于被用户接受，更直观地显示测量及查询结果；通过采用铁电存储器FM3164实现了数据的非易失性存储和精确的实时时钟；通过采用SL811HST芯片，实现了USB主机的功能，可读写U盘，从而实现了单片机的外挂式海量存储。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。