The neutrons are created in a fission reactor, and slowed to incredibly low speeds by materials known as moderators.
这些中子从核反应堆中产生，在减速剂的作用下减到难以置信的低速。
The particle size and morphology of materials known to have a great impact on their performance.
众所周知，材料的粒径和形貌对它们的性能有很大影响。
It is the production of fine, rigorous choice of materials, known for the unique taste, a model called Jinling snacks.
它以制作精细、选料严谨、口味独特而著称，堪称金陵小吃的典范。
It is the production of fine, rigorous choice of materials, known for the unique taste, a model called Jinling snacks.
它以制作精细、选料严谨、口味独特而著称，堪称金陵小吃的典范。
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