在斯坦福线性加速器实验室的一个地下设施里已经有了一个X射线激光器，它的频率频距将具有跨越数个足球场的长度。
One X-ray laser already exists in an underground facility at the Stanford Linear Accelerator Laboratory, where it spans several football fields in length.
加速器建成一个圆形，不过周围还有很多辅助设施包围。
The building of the synchrophasotron has a circular shape and it is already surrounded by auxiliary structures.
介绍了近年来国内外用加速器质谱计在环境科学方面的研究工作，包括测量城市空气污染、监测来自核设施的泄漏和有关全球环境变化的测定。
Some important work worldwide in environmental science, like urban air pollution, discharges of radioactive wastes from nuclear plants, and global climate change were introduced.
介绍了近年来国内外用加速器质谱计在环境科学方面的研究工作，包括测量城市空气污染、监测来自核设施的泄漏和有关全球环境变化的测定。
Some important work worldwide in environmental science, like urban air pollution, discharges of radioactive wastes from nuclear plants, and global climate change were introduced.
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