| 单词 | biological hole |
| 释义 | > as lemmasbiological hole biological hole n. a cavity in a nuclear reactor designed to permit the placing of living organisms near the core in order to test the biological effects of radiation. ΘΚΠ the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > test cavity in reactor biological hole1957 1957 Gloss. Terms Nucl. Sci. (A.S.A.) 19/2 Biological hole. 1997 J. M. Holl Argonne National Lab. iv. 117 Two 8-by-12-inch biological holes in a low-flux area accommodated experiments to measure the effect of neutron and gamma radiation on small animals. < as lemmas |
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