| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024ˈgam•ma ˌray, n. [countable]- Physicsa particle of high-energy, high-frequency radiation given off by a radioactive atomic nucleus.
- Physicsa stream of such radiation.
WordReference Random House Unabridged Dictionary of American English © 2024gam′ma ray′, [Physics.]- Physicsa photon of penetrating electromagnetic radiation (gam′ma radia′tion) emitted from an atomic nucleus.
- Physicsa photon emitted by an electron as a result of internal conversion.
- Physicselectromagnetic radiation with wavelengths shorter than approximately one tenth of a nanometer.
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