楼上的翻译得可以
不过个别有错，列出如下：
1.Process Water and Waste Piping工业污水排放管道系统
注：工艺用水及其废水管道
2.Humidity Control Equipment适度控制设备
注：湿度调节设备
3.Breechings, Chimneys, and Stacks 烟道管,烟囱和堆栈
注：烟囱、分叉管和炉身
4.HVAC Instrumentation and Controls高压(空调)仪表和控制设备
注：HVAC指的是：Heating, Ventilating, and Air Conditioning Equipment供热通风与空气调节设备
5.Testing, Adjusting, and Balancing 检测,调整和均衡系统
注：测试、调整和平衡校正
以下为本人的翻译
Mechanical机械的
Mechanical Hangers and Supports 机械 吊支架
Mechanical Sound, Vibration, and Seismic Control机械 声音、震动和地震控制
Mechanical Identification机械 鉴别
Mechanical Insulation机械 绝缘
Building Services Piping建筑管道系统和配件
Pipes and Tubes管道
Valves阀门
Piping Specialties特殊管道
Pumps泵
Domestic Water Piping生活用水管路
Deionized Water Systems去离子水系统
Sanitary Waste and Vent Piping生活废水及其排泄管路
Storm Drainage Piping雨水排泄管路
Heating and Cooling Piping加热及制冷管路
Process Air and Gas Piping工艺空气及工艺废气管路
Process Water and Waste Piping工艺用水及废水管路
Fire Protection Piping消防管路
Plumbing Fixtures and Equipment厕、浴间设备及管路
Plumbing Fixtures厕、浴间设备
Plumbing Pumps污水泵
Potable Water Storage Tanks饮用水存储罐
Domestic Water Conditioning Equipment生活用水温度调节设备
Domestic Water Filtrating Equipment生活用水过滤设备
Domestic Water Heaters生活用水加热器
Furnaces炉
Fuel-Fired Heaters燃料加热器
Breechings, Chimneys, and Stacks烟囱、分叉管和炉身
Refrigeration Equipment制冷设备
Refrigeration Compressors制冷压缩机
Refrigerant Monitoring Systems制冷监控系统
Refrigerant Condensing Units制冷冷凝机组
Packaged Water Chillers集成冷水机
Liquid Coolers and Evaporative Condensers液体冷却器和蒸发冷凝器
Heating, Ventilating, and Air Conditioning Equipment供热通风与空气调节设备
Heat Exchangers换热器
Air Handling Units空气调节单元
Heat Pumps热泵
Humidity Control Equipment湿度控制设备
Terminal Heating and Cooling Units终端加热及制冷单元
Ducts (Sheet Metal)管道（铁皮围成）
Fans风扇
Air Outlets and Inlets空气进出口
HVAC Instrumentation and Controls HVAC控制装置
Pneumatic and Electric Controls气动和电动控制
Building Systems Controls建筑系统控制
Direct Digital Controls直接数字控制
Sequence of Operation操作程序
Testing, Adjusting, and Balancing测试、调整和平衡校正