学术英语理工lecture14VIP专享

精品文档---下载后可任意编辑On March 11, 2024, a magnitude earthquake struck Japan, causing a devastating tsunami that tore through the coastal regions and leveled the villages in its path. The earthquake also severely damaged nuclear reactors at the Fukushima Daiichi Power Plant, sparking explosions and the release of radioactive material. Recent reports suggest that leaks from the reactor's core may be extremely dangerous, not only threatening workers there but also contaminating the facility and surrounding community on the longer term. As Japanese engineers, scientists, and firefighters work to control the continuing crisis at the vulnerable Fukushima plant -- efforts that are hindered by strong aftershock earthquakes -- fears about the scope of this nuclear disaster and the radiation's health effects continue to spread. Radiation is energy that is transmitted in the form of waves or particles. Ionizing radiation describes waves or particles that have enough energy to remove electrons from other atoms, thus creating chemically reactive ions (charged atoms) that can damage 年 3 月 11 日,日本发生级地震,造成毁灭性的海啸,横扫了沿海地区,摧毁了村庄的道路。地震还严重受损福岛第一核电站核反应堆,引发爆炸和放射性物质的释放。最近的报告表明,从反应堆泄漏的核心可能是极其危险的,不仅威胁工人,但也污染的设施和周围社区。日本工程师,科学家,和消防员工作控制持续脆弱的福岛核电站危机——努力强余震地震受阻的担忧这场核灾难和天然气的范围辐射的健康影响继续传播。辐射是能量波或粒子的形式传播。电离辐射描述波或粒子,有足够的精力去把电子从其他原子,从而创建化学活性离子(带电原子),会损伤细胞。In the Fukushima plant, several types of radioactive particles have been released into the air. Chief among these are iodine-131, cesium-137, plutonium-239, and strontium-90, each of which decays at a different rate an...