These materials are known as "radioisotopes" -versions of an element that, because they have an abnormal number of neutrons, frequently decay and release radiation.

这些物质被称作“放射性同位素”—同一种元素的变种，他们具有异常的中子数量，频繁的衰变和放出辐射。

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The abnormal metabolism and excess release of Glutamic acid as well as high-frequency stimulation to the postsynaptic receptor induce excitatory neural toxicity, resulting in the death of neurons.

因谷氨酸代谢异常，过度释放和对突触后受体的高频刺激，引起了兴奋性神经毒性，导致神经元死亡。

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Claim statistical data indicated that truck clutch release bearing had high failure rate, the failure mode including abnormal noise, ablation, oil starvation and wear of bearing block shoulder, etc.

统计近几年的三包索赔产品看出，某载货车离合器分离轴承的故障率一直居高不下，主要故障形式有轴承异响、烧蚀、缺油、轴承座耳台肩磨损等。

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