将液体从固体中分开来的最简易方法是什么?过滤在此影片中 将学习如何有效的用重力过露及真空过滤来进行。 The easiest way to separate a liquid from a solid? Filtration! Learn how to effectively carry out gravity and vacuum filtrations in this video

在本影片中学习如何熟悉滴定技术---用酚?在酸/碱滴定中的详 细示范。 Learn how to master the art of titration in this video-with a detailed demonstration of an acid/base titration using phenolphthalein

薄层分析法在许多研究实业室是最常用的此影片将带领你每 步骤,从准备跑瓶到计算RF(retention factor)值 步骤, Thin-layer chromatography is the most commonly used analytical technique in many research labs. This video walks you through every step from setting up a developing chamber to calculating Rf values

从固态到气态,然后直接回到固态。此纯化技巧既漂亮又实用 的。找出此影片中为什么用大气压力来升华二茂铁(Ferrocene) From solid to gas, and then straight back to solid. This purification technique is both beautiful and useful. Find out why by watching the atmospheric pressure sublimation of ferrocene in this video

Letter Writing Practice 2 Test Yourself You office needs to rent a video camera for one month. You need a small machine that produces a professional quality image. Write to Photofinish Ltd and ask them if they rent machines like that and the price. Write a full business letter. (invent any details you need)

Sntroduction to Sociology I. Socialization A. Its Meaning and Importance B. Feral Children C. Total Institutions and Resocialization -video clip on military resocialization D. Basic Research Findings 1. Human (Biophysical) Development

1. Fill in the blanks with appropriate words according to the text (1) Multimedia is the combination of computer and video technology (2)In fact, Multimedia is just two media: sound and picture (3) Multimedia PC needs to be more

Unit 6 Multimedia Text 1 What is multimedia? The answer is neither simple nor easy. Multimedia is the combination of computer and video technology. In fact, Multimedia is just two media: sound and is made from a mix o hardware and software. or machine and ideas

我爱计算机 http: //vlvzaixian.com:vlvzaixian.com BIOS中英文对照 Time/S***em Time时间/系统时间 Date/S***em Date日期/系统日期 Level2ache二级缓存 S***em Memory系统内存 Video Controller视频控制器 Panel Type液晶屏型号

Chapter Integrated and Differentiated Services 6.0 Introduction New additions to Internet increasing traffic High volume client/server application Web Graphics Real time voice and video