| 单词 | film ring |
| 释义 | > as lemmasfilm ring film ring n. a ring containing photographic film, used to measure the amount of radiation the wearer's hands have been exposed to. ΘΚΠ the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > device measuring exposure dosimeter1944 film badge1945 film ring1947 1947 Nucleonics Dec. 66/2 Film rings can be used with any of the films described above. 1955 Gloss. Terms Radiol. (B.S.I.) 67 Film ring, a film badge worn as a ring to measure the dose of radiation, usually beta radiation, received by the fingers. 2006 F. R. Spellman Industr. Hygiene Simplified vi. 173 Widely used devices include film badges, pocket chambers, pocket dosimeters, and film rings. < as lemmas |
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