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  2. Route availability - Wikipedia

    en.wikipedia.org/wiki/Route_availability

    Route Availability (RA) is the system by which the permanent way and supporting works (bridges, embankments, etc.) of the railway network of Great Britain are graded. All routes are allocated an RA number between 1 and 10. Rolling stock is also allocated an RA (again between 1 and 10) and the RA of a train is the highest RA of any of its ...

  3. File:Comparison of grit size standards.svg - Wikipedia

    en.wikipedia.org/wiki/File:Comparison_of_grit...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  4. Sharpening stone - Wikipedia

    en.wikipedia.org/wiki/Sharpening_stone

    The term is based on the word "whet", which means to sharpen a blade, [3] [4] not on the word "wet". The verb nowadays to describe the process of using a sharpening stone for a knife is simply to sharpen, but the older term to whet is still sometimes used, though so rare in this sense that it is no longer mentioned in, for example, the Oxford Living Dictionaries.

  5. Surface roughness - Wikipedia

    en.wikipedia.org/wiki/Surface_roughness

    Roughness values, Ra RMS (μin.) Center line avg., CLA Roughness, Rt ISO grade numbers micrometers (μm) microinches (μin.) (μin.) (μm) N12 50 2000 2200 2000 200 N11 25 1000 1100 1000 100 N10 12.5 500 550 500 50 N9 6.3 250 275 250 25 N8 3.2 125 137.5 125 13 N7 1.6 63 69.3 63 8 N6 0.8 32 35.2 32 4 N5 0.4 16 17.6 16 2 N4 0.2 8 8.8 8 1.2 N3 0.1 ...

  6. Sandpaper - Wikipedia

    en.wikipedia.org/wiki/Sandpaper

    Sandpaper is produced in a range of grit sizes and is used to remove material from surfaces, whether to make them smoother (for example, in painting and wood finishing), to remove a layer of material (such as old paint), or sometimes to make the surface rougher (for example, as a preparation for gluing). The grit size of sandpaper is usually ...

  7. Lions defeat Rams in overtime: Highlights, stats from Sunday ...

    www.aol.com/rams-vs-lions-sunday-night-213343684...

    Rams vs. Lions: A history lesson The Rams and Lions are squaring off for the 89th time in a series that dates back to 1948. The Rams hold the all-time series edge, 45-42-1 (45-40-1 in regular ...

  8. Aeronautical chart conventions (United States) - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_chart...

    White space around the chart is filled with map information and the legend, scales, and tables of airport and airspace information. Terrain is color-coded for its elevation and major roads, cities, and bodies of water are shown for visual reference, as well as other identifiable structures (e.g., stadiums and water towers ).

  9. Rob Gronkowski takes NFL officials to task over alleged ...

    www.aol.com/rob-gronkowski-takes-nfl-officials...

    Rob Gronkowski took NFL officials to task in a recent interview with Fox News Digital, saying they are "more lenient" toward the Chiefs.

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