PFD 图中应表示主要设备、主要工艺管道的翻译：PFD says major equipment, the primary process in pipeline 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

pfd diagram should indicate the main equipment, the main process piping

PFD says major equipment, the primary process in pipeline

In the PFD chart should express the main equipment, the main process tube

In the figure PFD should indicate the major equipment, major process piping

PFD says major equipment, the primary process in pipeline