9.1过滤概述 9.1.1慢滤池 慢滤池是最早出现的用于水处理的过滤设备,能有效地去除水的色度、嗅和味,见9—1。由于慢滤池占地面积大、操作麻烦、寒冷季节时其表层容易冰冻,在城镇水厂中使用的慢滤池逐渐被快滤池所代替

Determination of the relative movement of the two walls from the tension joints

TERMINOLOGY FOR DISPLACEMENT a is the rake angle

Main Bedding Types Bedding Shape level bedding ripple bedding Main Types of plate laminae

CONSTRUCTION OF VERTICAL SECTION 1 Select the location of the section and draw a section line (usually perpendicular to the strike of the main structures), right-hand end is its more easterly end 2 Draw a topographic profile along the line of section. Determine the base line on the squared

Review Show the homework and note book on your desk Practise measurement of attitude of planes and lines in the models

Determination of the top sur faces of the beds from the scour surfaces

Chapter 2 Primary Sedimentary Structures Main types of bedding Determination of younger direction of beds from primary structures Types of stratigraphic break Angular unconformity Soft sedimentary structures

Chapter One Introduction Goals Outline Two supports Types of structures QA uantitative techniques pplication Suggestion

前面介绍了曾占主流地位的古典与新古典贸易理论。本章介绍解释当代国际贸易理 论。由于这些理论改变了传统贸易理论假设条件,分析框架也不同,称为“现代国际贸易 理论”。 20世纪70年代末是贸易理论发展的分水岭此前,几乎所有研究都以完全竞争为假 设,它们成功地解释了产业间贸易、国际资本流动、技术优势决定分工与贸易格局的问 题,并且支持自由贸易或不干预政策