请问氧清洁压力表oxygen clean pressure gauge什么概念?
问题描述：
请问氧清洁压力表oxygen clean pressure gauge什么概念?
答
Oxygen clean means the removal of any substance that could act as a source of ignition to reduce the risk of fire.
就是说这个压力计必须是除去了任何能与氧气会发生反应的物质.