fuel rod:燃料棒;核反应堆中装有核燃料(常见为二氧化铀或含钚燃料)的细长棒状组件,用于在堆芯中发生裂变反应并释放热量(供发电或科研)。
/ˈfjuːəl rɑːd/(美)
/ˈfjuːəl rɒd/(英)
The technician inspected the fuel rod.
技术员检查了燃料棒。
After the reactor shut down, the spent fuel rods were transferred underwater to a cooling pool for storage and shielding.
反应堆停堆后,用过的燃料棒被转移到水下的乏燃料冷却池中,以便冷却、储存并进行辐射屏蔽。
fuel 来自古法语 fouaille / fuel(与“供火燃烧的材料”相关),最终可追溯到拉丁语 focus(“炉火、火炉”);rod 来自古英语 rodd(“杆、棍”)。合起来 fuel rod 字面即“燃料的杆状物”,在核工程语境中专指装载核燃料的“燃料棒”。