《水分析化学 Water Analytical Chemistry》课程教学课件（讲稿）第五章 氧化还原滴定法 5.1 氧化还原反应的方向和程度 5.2 氧化还原反应的速率 5.3 氧化还原滴定

《水分析化学 Water Analytical Chemistry》课程教学课件（讲稿）第三章 络合滴定法 3.2.2 络合反应的副反应系数 3.2.3 络合物的条件（稳定）常数 3.3.1 滴定曲线 3.3.2 金属指示剂

《水分析化学 Water Analytical Chemistry》课程教学课件（讲稿）第二章 酸碱滴定法 2.3 酸碱指示剂

5.1有关误差的一些基本概念 5.1.1准确度和精密度 1.准确度 测定结果与“真值”接近的程度. 绝对误差E2=x-T 相对误差E=ax100%

第4节水样的保存和预处理 本节以自学为主,主要要求掌握: 1、水样采集、保存和预处理是关系分析 结果准确可靠的重要环节; 2、水样采集要保证代表水的全面性; 一、水样采集与保存 水样采集简称取样 1、取样器见P14图 2、取样量根据检测内容来确定、详见表1-1

一、本节知识结构 二、误差的概念、分类与表示法 三、随机误差的统计规律 四、少量数据的统计处理

Template Structures By far the most common type of fixed offshore structure in existence today is the template, or substructure that extends from the seafloor to above the water surface and a prefabricated steel deck located atop the substructure. The deck is supported by pipe piles driven through the legs of the substructure into the seafloor. These piles not

The basis for ship equilibrium Consider a ship floating upright on the surface of motionless water. In order to be at rest or in equilibrium, there must be no unbalanced forces or moments acting on it. There are two forces that maintain this equilibrium (1) the force of gravity, and (2) the force of buoyancy

Local or remote control Microprocessor controlled RS-232/RS-485 CAN Complete diode laser control Affordably priced and monitoring solution Air or water cooling( specify)

Section 1 Soil three phases Constitution Soil density and bulk density (一) Soil density( or Particle density) Soil density is the density of the solid soil particles only; the measurement does not include water weight or pore (air)space. The dominant soil minerals-quartz, feldspars micas, and clay minerals-