第一节 地表流水的一般概念 7.1 General Concept of Surface Running water 第二节 片流、洪流形成的地貌及堆积物 7.2 Landforms Formed by Sheetwash , Flood Current and Accumulation 第三节 河流的地质作用 7.3 Geological Processes of a Stream 第四节 河谷地貌 7.4 Landforms of the River Valley 第五节 冲积平原 7.5 Alluvial Plains 第六节 河口区地貌 7.6 Landforms in River Mouth Areas 第七节 河流地貌发育 7.7 Development of the Stream Landforms 第八节 地表流水与农业资源 7.8 Surface Running Water and Agricultural Resources

6.5 Cleaning the Comyn oil/water Separater To clean out the separator ensure that all oil possible has been drawn off through the oil recovery valve and scum valve, and that the separator is full of water. Turn on steam to heating coil; also steaming out connection, and allow the separator to become thoroughly hot

General Operating Procedure Before pumping oily water into the separator it is important that the separator is completely filled with clean water, either direct from the sea or through the filling valve provided for this purpose. It is essential to keep the lower internal surfaces and outer chamber from becoming coated with oil

Water vapor in the air The volume of Water vapor is variable, depending on temperature, precipitation, rate of evaporation and other factors at a particular location The percentage of water vapor ranges from 0.1- 5%. Generally it is 1-3%(the 3rd most abundant constituents in the air)

A fire and bilge pump has suctions from sea, bilge main and engine room bilge, with discharges to fire main, oily water separator and overboard. A ballast pump has suctions from sea, ballast main, engine room , bilge direct and bilge main with discharges to overboard, the ballast main, the oily water separator and possibly, the main salt water circulating system

2.1 Weak Interactions in Aqueous Systems 47 and titration curves, and consider how aqueous solu 2.2 lonization of Water. Weak Acids, and tions of weak acids or bases and their salts act as buffers Weak Bases 60 against pH changes in biological systems. The water 2.3 Buffering against pH Changes in Biological

1. Why do we need High Purity Water forcleaning and rinsing? 为什么要用超纯水作清洗和冲洗？ 2. What is DI water?什么是DI 水？ 3. Water General Standard.水的一般标准

学习目的:掌握水质指标的基本概念和常见水 质指标。使学生了解分析化学是怎样的一门学 科,树立准确的量的概念。了解定量分析的过 程;误差的基本概念

同济大学：《环境科学概论》课程教学资源（教案课件）Part 2 Water Resources and Treatment Topic 2 Water pollution 水污染

第五章地下水(Ground water) 赋存在地表以下岩土空隙中的水。 岩土的空隙: 1.松散沉积物中的孔隙连通性好 2.坚硬岩石中的裂隙 分布不均匀 3.可溶性岩石中的溶隙连通性差