英语词汇“delta-rays”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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delta-rays

delta-rays n. (also δ-rays,) rays of low penetrating power consisting of slow electrons released by the passage of ionizing particles such as alpha-rays through matter.

ΚΠ

1908 E. Rutherford & H. Geiger in Proc. Royal Soc. A. 81 163 It is well known that the α-particles, in their passage through matter, liberate a large number of slow-velocity electrons, or δ-rays, as they have been termed by J. J. Thomson.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) I. 267/2 An appreciable fraction, roughly one-half, of the energy lost by α-rays appears as δ-rays.

extracted from deltan.

as lemmas

单词	delta-rays
释义	> as lemmas delta-rays delta-rays n. (also δ-rays,) rays of low penetrating power consisting of slow electrons released by the passage of ionizing particles such as alpha-rays through matter. ΚΠ 1908 E. Rutherford & H. Geiger in Proc. Royal Soc. A. 81 163 It is well known that the α-particles, in their passage through matter, liberate a large number of slow-velocity electrons, or δ-rays, as they have been termed by J. J. Thomson. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) I. 267/2 An appreciable fraction, roughly one-half, of the energy lost by α-rays appears as δ-rays. extracted from deltan. < as lemmas
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