different between faceplate vs carrier

English

face +? plate

faceplate (plural faceplates)

A removable protective shield separating the inner workings of a machine from operator and observer.
A rigid flat surface that has an active role in the interaction of a device with an operator or user.

carry +? -er

carrier (plural carriers)

A person or object that carries someone or something else.
A carrier pigeon.
A person or company in the business of shipping freight.
- 1727, Jonathan Swift, A Short View of the State of Ireland
  The roads [are] crowded with carriers, laden with rich manufactures.
A signal such as radio, sound, or light that is modulated to transmit information.
(telecommunications) A mobile network operator; wireless carrier.
(aviation) A certified airline.
- 2013 Dec. 22, Jad Mouawad and Martha C. White, "[1]," New York Times (retrieved 23 December 2013):
  Southwest, the nation’s largest domestic carrier, is installing seats with less cushion and thinner materials — a svelte model known in the business as “slim-line.”
(engineering) That which drives or carries.
1. A piece which communicates to an object in a lathe the motion of the faceplate; a lathe dog.
2. A spool holder or bobbin holder in a braiding machine.
3. A movable piece in magazine guns which transfers the cartridge to a position from which it can be thrust into the barrel.
4. A movable piece in a planetary gear train.
  Synonyms: spider, arm
(chemistry) A catalyst or other intermediary in a chemical reaction.
(genetics, pathology) A person or other organism that has a genetic trait, mutation or infection liable to cause a disease, but displays no symptoms.
(physics, electronics) charge carrier
(art, manufacturing) A liquid or gas used as a medium for another substance.

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