ratemeter

名词 n.
中文释义

英文释义

名词 n.
  1. Any of several devices that measure the average rate of radioactive emissions over a specified time interval.

词形变化

ratemeters plural rate meter alternative

词源

Etymology tree
English rate
Proto-Indo-European *meh₁-
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English ratemeter
From rate + -meter.
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