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Roport of the Secretary of Commerce
Report of the National Bureau of Standards
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accuracy activities Advisory Aeronautics aircraft alloys analysis apparatus application Atomic Energy atomic standard automatic basic betatron bone char Bureau of Aeronautics Bureau of Standards calibration carbon cement ceramic chemical Chemistry coatings commercial Commission Committee completed computing concrete conducted construction cooperation corrosion dental Department determination devices effect electrical electronic engineering equipment evaluation experimental field frequency gage gases glass Government agencies heat important improved included industry instruments International investigation ionospheric isotopes jet engines laboratories machine magnetic mass spectrometer materials mathematical mechanical ment Metallurgy metals meters methods microwave National Bureau Navy Numerical Analysis obtained operation optical percent physical plastics polymers pressure problems projects properties radiation radio propagation radioactive radium range resistance resistors Screw Thread SECRETARY OF COMMERCE specimens standard samples structure synthetic rubber technical techniques temperature tests thermal thermocouples tion tubes types United various viscosity Weights and Measures X-ray