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词汇 alphatron
释义

Definition of alphatron in English:

alphatron

noun ˈalfətrɒn
Physics
  • An ionization gauge in which the passage of alpha particles through a near-vacuum generates an ionization current by means of which the pressure of the residual gas may be measured. Frequently attributive Now historical.

Origin

1940s (in an earlier sense). From alpha + -tron.

Definition of alphatron in US English:

alphatron

nounˈalfətrɒn
Physics
  • An ionization gauge in which the passage of alpha particles through a near-vacuum generates an ionization current by means of which the pressure of the residual gas may be measured. Frequently attributive Now historical.

Origin

1940s (in an earlier sense). From alpha + -tron.

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