Philip Greenspun illustration project/Round 1/Request list/45

Philip Greenspun illustration project
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Round 1
Request list

• JIRA: https://jira.toolserver.org/browse/PGIP-71
• US$40

(en) Pressure regulator

• http://en.wikipedia.org/wiki/Pressure_regulator
• Examples: http://www.plastomatic.com/bprvspr.html, http://www.esme-valves.co.uk/products/?p=11
• tags: physics