Process flow diagram DY
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What kind of water does DY represent in the process flow diagram?
It could be deionized water; or check the process instructions. Sometimes we also create one by using the initial letters of the medium’s name in pinyin
The codes must be checked against the legend used by the design institute; some codes signify different things in different design institutes
Each design firm has its own unique code; to obtain the homepage layout from a design firm, it is necessary to contact them