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2. Nunnelly, Tennessee - Wikipedia

   en.wikipedia.org/wiki/Nunnelly,_Tennessee

   Nunnelly is located at the junction of state routes 48 and 230, 5.6 miles (9.0 km) north of Centerville. [2] Nunnelly has a post office, with ZIP code 37137. [3] [4 ...

3. Micrometer (device) - Wikipedia

   en.wikipedia.org/wiki/Micrometer_(device)

   Tube micrometers have a cylindrical anvil positioned perpendicularly to a spindle and is used to measure the thickness of tubes. Micrometer stops are micrometer heads that are mounted on the table of a manual milling machine, bedways of a lathe, or other machine tool, in place of simple stops. They help the operator to position the table or ...

4. Micrometer adjustment nut - Wikipedia

   en.wikipedia.org/wiki/Micrometer_adjustment_nut

   On a manual milling machine, the micrometer adjustment nut limits the depth to which the cutting tool may plunge into the workpiece. The nut is located on a threaded rod on the mill head. The machine operator moves it up or down by rotating it clockwise (to move it down) or counter-clockwise (to move it up).

5. Precision measurement equipment laboratory - Wikipedia

   en.wikipedia.org/wiki/Precision_Measurement...

   The roles of technicians may vary from various locations but typically are divided by skill level. The 2P0X1 AFSC is broken down by skill levels. The five skill levels are 1,3,5,7,and 9. This skill level is determined by qualifications, rank and experience. In addition, this AFSC feeds into Chief Enlisted Manager code of 2P000.

6. 1951 USAF resolution test chart - Wikipedia

   en.wikipedia.org/wiki/1951_USAF_resolution_test...

   Glass chart. A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.

7. Measurement microphone calibration - Wikipedia

   en.wikipedia.org/wiki/Measurement_microphone...

   Reciprocity calibration is a specialist process, and because it forms the basis of the primary standard for sound pressure, many national measurement institutes have invested significant research efforts to refine the method and develop calibration facilities. A system is also commercially available from Brüel & Kjær.