ระดับภาคีวิศวกร Associate Engineer
ภาคีวิศวกรสาขาโยธา Associate Civil Engineer
ภาคีวิศวกรสาขาเครื่องกล Associate Mechanical Engineer
ภาคีวิศวกรสาขาไฟฟ้า Associate Electrical Engineer
ภาคีวิศวกรสาขาอุตสาหการ Associate Industrial Engineer
ภาคีวิศวกรสาขาเหมืองแร่ Associate Mining Engineer
Back Gears (english) Gears fitted to a machine to increase the number of spindle speeds obtainable with a cone or step pulley belt drive.
BACK-UP RING (english) A fabric or plastic device that is used with an o-ring or other gasket to prevent extrusion of the o-ring or gasket into an adjacent space or crevice
Back-up Roll (english) 1) Roll used as a support roll mainly for plater rolls. 2) Two rolls, one on top and one on bottom of the two work rolls which apply pressure and reduce the flexing of the work rolls.
Backer (back-up plate) (english) A “tool” or reinforcing part, which presses against the outer surface of an extrusion die, supporting it against the pressure of the extruding metal. The backer has an opening larger than the die aperture, allowing the extruded product to emerge without marring its soft surface.
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