| 单词 | safety rod |
| 释义 | > as lemmassafety rod safety rod n. Nuclear Physics a control rod that can be dropped into a reactor in an emergency to stop the reaction by absorbing the free neutrons that would otherwise sustain it. ΘΚΠ the world > matter > physics > atomic nucleus > nuclear fission > nuclear reactor > [noun] > rod for use in emergency safety rod1945 1945 Rev. Mod. Physics 17 460/2 There were ten slots passing completely through the pile. Three of those near the center were used for control and safety rods. 1971 New Scientist 13 May 389/1 The safety rods of a nuclear reactor are for use in emergencies when the neutron flux within the reactor core has to be immediately reduced. 2008 J. Bernstein Nucl. Weapons vi. 114 An automatic cadmium safety rod slammed down and brought the process to a halt. < as lemmas |
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