The samples are normally irradiated in the "moderate" part of a nuclear reactor . 样品通常要放在反应堆的“减速”区中进行辐照。
Someday, perhaps, homes will be heated from a small reactor in the basement . 有那么一天，家庭也将依靠地下室里的小型反应堆来供热。
Why run such frightful risks, they conclude, since reactors are not even necessary ? 他们得出结论说既然反应堆不是必不可少的，为什么要冒这样大的风险呢？
A new generation fusion reactor will be needed after that to prove the next step, ignition . 此后，将需要新一代的聚变反应堆对下一阶段，即“起爆”阶段进行试验。
An attendant could cut the rope, dropping the control into the core and preventing a runaway reaction . 值班人员可砍断绳索，让控制棒插入反应堆芯从而制止失控反应。
The fuel is produced only within the reactor, and therefore cannot be retrieved easily for building bombs . 由于燃料只在反应堆内产生，因此不会轻易地被回收来制造炸弹。
Only with very high-flux reactors is it usually possible to employ diffractometers of high angular resolution . 只有对非常高通量的反应堆，才可能应用高角分辨率的衍射计。
Sweden, which must import oil for seventy percent of its energy needs, had six reactors in service at the time and six more under construction . 瑞典所需要的能源70靠进口石油，当时有六个反应堆在工作，还有六个在建设中。
Fire protection program criteria for research reactors 研究反应堆的消防措施标准
Pipe penetrations through the reactor containment 穿过反应堆安全壳的管道贯穿件
