水循环

Experimental results showed that the hydrogenation degree can be enhanced significantly by the addition of triphenylphosphine. When the molar ratio of TPP, TPPTS and Ru is 2:5:1, 89% hydrogenation degree can be achieved after 12 h under reaction conditions of 5.0 MPa and 150~C.

考察了溶剂种类、水溶液的pH值、添加助剂三乙胺、水／有机两相体积、底物浓度等对对-氯硝基苯转化率和生成对-氯苯胺选择性的影响，并在90℃、4.0MPa、反应时间为6h的条件下，进行了催化剂的循环实验。

In this paper, the preparations, analytical methods, physical characteristics of ferrates and the application of ferrates in the fields of synthesis of organic compounds, treatment of waste water and the usage as cathode material in alkaline batteries are summarized. The electrochemical preparation of sodium ferrate is described and the relationships between the main parameters in the process are deeply investigated. One method of in-situ electrosynthesizing potassium ferrate of high purity with both high efficiency and low energy consumption is invented. The cyclic voltammogram and feature characterization of iron anode in alkaline solutions is studied. One preparation method of ex-situ electrosynthesizing tripotassium sodium ferrate of high purity is created.

本文概述了高铁化合物的制备方法、分析方法、物理化学性质及其在氧化合成有机物、水处理和用作碱性电池正极材料等领域的应用；深入系统地研究了高铁酸钠的电化学制备及其影响参数之间的关系；研发了一种高效率低能耗直接电合成高纯度高铁酸钾的工艺方法；探讨了铁电极在浓的苛性碱溶液中的循环伏安特征及其极化特征；研发了一种电化学制备高铁酸三钾钠的工艺方法并用多种现代分析测试技术对K_3Na(FeO_4，)_2进行了表征。

Studied in the paper are the performance, separation efficiency and pressure loss of a uniflow square shaped cyclone separator which can be directly and easily installed on the water wall of a circulating fluidized bed boiler.

对可与循环流化床水冷壁直接结合而易于布置的下排气方形旋风分离器的性能指标：分离效率、压降等进行了研究。

The experiment results show that the highest unoiling rate s of SW-1 are 85 6% and 80 4% for 15 # lubricating oil and petroleum respectively, and the unoiling rate increases at first and then decreases with further addition of this reagent.

实验结果表明：SW - 1对 15 #机械润滑油和原油的最高除油率分别为 85 6 %和 80 4 %，且除油率是随着加药量的增大而先增大后减小；在 2 0 0～ 2 0 0 0mg/L的质量浓度范围内，除油率随着油介质浓度的增加而降低；同时SW - 1对循环水系统中的缓蚀剂的缓蚀效果没有明显影响。

This paper introduces the design of cooling water cycle with the early and cold water from original coal gas , impurity benzene and vaporing ammonia in Guangzhou steel Company It uses wastewater by treatment as adding water .

本文介绍广钢焦化厂原煤气初冷水，粗苯和蒸氨系统的冷却水循环系统的设计，将焦化废水净化处理后作为补充水，旁滤系统保证了循环水质能达到工艺要求。

Through the water fog blow the zymogenic circulately, the method of multi-point temperature measuring can improve the accuracy of temperature and guarantee the product quality; the combination of motor frequency and adjusting the open degree of air-door can realize the amount of wind; output dynamic display modules can realize the dynamic output and stable display.

介绍了利用可编程控制器对副食生产线酱油生产进行控制的方法，即通过水雾对曲料做循环吹风，采用多点温度检测的方法，提高了测温精度，保证了产品的质量；通过电机变频和调整风门开度相结合的方法，实现进风量的调整；采用动态输出显示模块，实现对各个参数的动态输出和静态显示。

PWR ; Burnup ; Nuclear fuel cycle ; Economics analysis ; Computer code

压水堆；燃耗；核燃料循环；经济分析；计算机程序

The results indicated that COD,the contents of suspension,ammoniated nitrogen and nitrated nitrogen were much lower than those of mono...

结果表明，循环水养殖系统内虾池水层悬浮物数量、COD值、氨态氮和硝酸态氮含量比对照组对虾单养池明显降低(P·01)。

This dictates the use of brazed copper tubing, even though the pressures are similar to water loops.

这决定了钎焊铜管材的使用，即使压力类似于水的循环。

In its chaotic dance, the careening balloon mirrors the unpredictable waltz of sunspot cycles, Ice Age's temperatures, epidemics, the flow of water down a tube, and, more to the point, the flux of the stock market.

在这种混沌之舞中，横冲直撞的气球舞出的是难以捉摸的华尔兹，是太阳黑子的周期循环、冰河时期的气温、流行性传染病、水沿着管道的流动，更值得一提的，是股票市场的波动。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。