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Glossary
    in Terms
    in Terms & Definitions
 
Bulk factor:
see bulk modulus.
Last referenced in: Survey of the European Fabric Fairs for Autumn/Winter 2011/12 (Textile Outlook International Issue 148)

Bulk modulus:
ratio of the fractional change in volume to the applied stress causing it.

Bullet proof material:
a material which provides complete protection against all types of high velocity projectiles or against multiple hits in the same location from such projectiles.
Last referenced in: Sewing needles and threads for technical textiles (Technical Textile Markets Issue 93)

Bullet resistant material:
a material which resists penetration from certain high velocity projectiles such as bullets from firearms. (See also bullet proof material.)
Last referenced in: Technical textile markets: product developments and innovations, 3rd quarter 2012 (Technical Textile Markets Issue 90)

Bushing:
a block made from platinum alloy containing several hundred holes through which molten glass is fed at very high temperatures from a furnace, resulting in the formation of glass filaments.

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