水的各种数据 Various Data for Water 汞在不同温度下的蒸气压 Vapor Pressures of Mercury at Different Temperatures 摄氏、华氏温度对照表 Contrast between Celsius Temperatures and Fahrenheit Temperatures 常用干燥剂及干燥适用条件 Common Drying Agents and Applicable Condition 常用气体吸收剂 Common Gas Absorbents 常用加热浴种类和加热用液体介质的性质 The Kinds of Common Calefaction Bath and the Properties of Liquid Media Used in Calefaction 常用冷却剂 Common Refrigerants