... 配管附件 plumbing fixtures 配管及仪表 P & I; piping and instrument 配管及仪表图 PID; piping and instrument diagram ...
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piping and instrument drawing 管道及仪表流程图
Piping and Instrument diagram P&ID 管道及仪表流程图 ; 详细的画出现场的机械与管线的图
piping and instrument flow diagram 管道及仪表流程图
piping and instrument diagram 管道和仪表流程图
Needle valve: it is an important instrument measuring piping system components, mainly cut-off valve and ball valve, its purpose is to open or cut off access by pipeline.
针型阀：是仪表测量管路系统中重要组成部分，主要有截止阀和球阀，其功用是作开启或切断管道通路用。
Based on the plant fuild properties and the job site weather condition, tracing is not required for instrument and measuring piping.
根据本装置仪表所测物料的特点及当地气候条件，仪表及测量管路不需伴热。
Design philosophy and method of local instrument for piping is provided according to the practical example in order to provide reference for colleagues and improve the design level of piping.
通过实例描述了工艺管道上一次仪表布置设计的原则和方法，以期为设计同行提供参考，提高行业管道设计水平。
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