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Experimental analysis showed that the liquid electrical resistivity of Al-Si alloy was nonlinear with temperature, and the viscosity interruptedly exponential with temperature. The liquid physical properties of Al-Si alloy were affected by not only liquid temperature but also microinhomogeneity.

实验研究表明，Al-Si合金液态电阻率和温度呈非线性关系，粘度和温度呈间断指数曲线关系，Al-Si合金液态物性不仅受温度而且受微观不均匀性影响。

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabili...

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制，它通过PID算法和外围的程序处理，通过控制阀门开度来调节水位，使水位基本恒定在期望值，并且阀门调节次数基本与手动调节一样，但水质却明显好很多，更重要的是对现场适应能力强，反应快，而且完全脱离人为干预进行全自动控制，对故障也有快速保护，更具安全稳定性。

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabilization.

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制，它通过PID算法和外围的程序处理，通过控制阀门开度来调节水位，使水位基本恒定在期望值，并且阀门调节次数基本与手动调节一样，但水质却明显好很多，更重要的是对现场适应能力强，反应快，而且完全脱离人为干预进行全自动控制，对故障也有快速保护，更具安全稳定性。

A selective and mild PS-DIB/ionic-liquid immobilized 2, 2, 6, 6-tetramethyl-piperidin-4-ol-N-oxyl catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via the iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TeMPO catalyst, 4-(2, 2, 6, 6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from TeMPO and 1, 4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化，制得了负载型二乙酰氧碘苯作为氧化剂。2， 2， 6， 6-四甲基－N-氧自由基哌啶醇与1， 4-二溴丁烷反应生成4-溴丁氧基－2， 2， 6， 6-四甲基－哌啶－1-氧化物，再与N-甲基咪唑发生季铵化反应，生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2， 2， 6， 6-四甲基－N-氧自由基哌啶负载离子液体。

A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化，制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene，PS-DIB)作为氧化剂。2，2，6，6-四甲基-N-氧自由基哌啶醇(2，2，6，6-tetramethyl-piperidin-4-ol-N-oxyl，TEMPO)与1，4-二溴丁烷反应生成4-溴丁氧基-2，2，6，6-四甲基-哌啶-1-氧化物，再与N-甲基咪唑发生季铵化反应，生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2，2，6，6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。

Objective To analyse the clinical application quality of four kinds of uricase reagents:dry simple reagent of Changzheng company;liquid double reagent of Shanghai Kehua;liquid double reagent of Shanhai Shennergy-Diasys;liquid double reagent of Beijin Leadman.

目的 了解不同厂家四尿酸酶试剂即长征公司尿酸干粉单试剂、上海科华公司尿酸液体双试剂、上海申能公司尿酸液体双试剂、北京利德曼公司液体尿酸双试剂的临床应用质量方法对不同厂家尿酸试剂的精密度、线性、回收试验、干扰试验的比较以及试剂稳定性的观察。

The circular concentration can, consisting of four parts of can body, condenser, gas-liquid separator and liquid receiving barrel, is available to concentrate and distill the material liquid in such industries as pharmacy, food and chemistry and recycle the organic menstruum.

球形浓缩罐主要由浓缩罐主体、冷凝器、汽液分离器、受液桶四个部分组成，可用于制药、食品、化工等行业对料液的浓缩、蒸馏及有机溶媒的回收工艺。

Li Dongsheng: The project of group of liquid crystal model of benefit city is being started now, workshop has been built, land also is bought, the contract also was signed, project of group of liquid crystal model can realize liquid crystal and modular group unifinication, reduce intermediate segment, reduce cost, the project has begun, won't stop.

李东生：现在惠州的液晶模组项目正在启动，厂房已经建设完了，土地也买下来了，合同也签订了，液晶模组项目可以实现液晶和模组一体化，减少中间环节，降低成本，项目已经开始，不会停下来了。

IT者网站提供英文翻译,未经授权请勿转载】 On July 9, domestic head money, the TV of liquid crystal of 42 inches of LED with the smallest whole world appears on the market, this ended group of model of TV of our country liquid crystal to depend on the history of the entrance entirely almost not only, also be in a poor light to liquid crystal of sea letter LED Liu Weidong makes the same score leader of project of modular group research and development added not little " be not routine ", accepting media to interview is among them one of.

7月9日，国内首款，全球最薄的42英寸LED液晶电视上市，这不仅结束了我国液晶电视模组几乎全部依靠进口的历史，也给海信LED液晶背光模组研发项目带头人刘卫东平添了不少的"非日常工作"，接受媒体采访是其中之一。

COMAPIL-AMF25C an integrated generator controller, the motor pool protection LCD temperature hydraulic liquid crystal display, liquid crystal display battery voltage. speed liquid crystal display and operation of power generating units into a multifunctional LCD display controller parameters. and automatic button activated a hand in turmoil, with automatic start function RS232 communication interface with the PC and pass directly linked to its Remote Computer Starter Group. the following functions

COMAPIL-AMF25C是一个综合的发电机组控制器，集合了发动机保护，温度液晶显示，油压液晶显示，电池电压液晶显示，速度液晶显示和发电机组运行电力参数液晶显示为一体的多功能控制器，提供了手动荡不安启动和自动按钮，配有自动启动功能，并能通过RS232通讯接口直接与PC相联，实现其远程计算机起动机组。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。