dust-free

English

From dust +‎ -free

dust-free (not comparable)

Alternative form of dustfree
- 1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, page 264:
  Injector testing under pressure has never presented any difficulty. It is carried out in a small, dust-free cubicle fitted with an extractor fan and the meter calibration is checked annually.

单词	dust-free
释义	dust-free English Etymology From dust +‎ -free Adjective dust-free (not comparable) Alternative form of dustfree 1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, page 264: Injector testing under pressure has never presented any difficulty. It is carried out in a small, dust-free cubicle fitted with an extractor fan and the meter calibration is checked annually.
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