管道等级piping class; piping classification
管道等级号class designation
公称直径nominal diameter (DN); nominal (pipe) size
公称压力nominal pressure (PN)
压力级，等级，类别class (CL)
低压 low pressure (L.P.)
中压 medium pressure (M.P.)
高压 high pressure (H.P.)
大气压atmosphere (ATM)
真空 vacuum
工作压力operating pressure; working pressure
设计压力design pressure
工作温度operating temperature
设计温度design temperature
环境温度ambient temperature
腐蚀裕量corrosion allowance
管道附件piping attachment
管道元件piping element
壁厚 wall thickness (WT)
壁厚系列号schedule number (SCH. No.)
加厚的，加强的extra heavy, extra strong
双倍加厚的，双倍加强的double extra heavy, double extra strong
通用连接组typieal installation
分组（类）形式（如管道等级表）block form
数据库data base
文件 file
4.2 材料统计Material Take-off (MTO)
汇总表summary sheet
材料表bill of material (BM)
综合管道材料表consolidated piping material summary sheet (CPMSS)
统计材料准确度accuracy of take-off
材料情况报告 materialstatus report (MSR)
散装材料bulk material
编位号的itemized
代码 code number
短代码short code
数量 quantity (QTY)
重力 weight
净重 net weight
毛重 gross weight
5 设备布置及管道布置
Plot Plan and Piping Layout,Equipment and Piping Arrangement