backing

  Aaron ·  2010-08-06 19:19  ·  11763 次点击
backing
n.
衬背,援助,支持者,赞助者
习惯用语backingoff卸下backingup回投havethefullbackingof得到...的充分支持
(1)Ingrinding,thematerial(paper,cloth,orfiber)thatservesasthebaseforcoatedabrasives.
(2)Inwelding,amaterialplacedunderorbehindajointtoenhancethequalityoftheweldattheroot.Itmaybeametalbackingringorstrip;apassofweldmetal;oranonmetalsuchascarbon,granularfluxoraprotectivegasatmosphere.(3)Inplainbearings,thatpartofthebearingtowhichthebearingalloyisattached,normallybyametallurgicalbond.

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