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原文
(1). Science and Technology
科技
(2). Rare earths and climate change
稀土与气候变化
(3). In a hole?
陷入了危机？
(4). Demand for some rare-earth elements could rapidly outstrip supply
某些稀土元素可能很快会供不应求
(5). 1: MANY plans for reducing the world’s emissions of carbon dioxide-at least, those plans formulated by environmentalists who are not of the hair-shirt, back-to-the-caves persuasion-involve peppering the landscape with wind turbines and replacing petrol-guzzling vehicles with electric ones charged up using energy gathered from renewable resources. The hope is that the level of CO2 in the atmosphere can thus be kept below what is widely agreed to be the upper limit for a tolerable level of global warming, 450 parts per million.
1: 许多全球性减排二氧化碳的计划是要建造星罗棋布的风力涡轮发电机，并以再生能源发电为电动汽车充电，摈弃狂吞汽油的汽车。哦，至少那些并不坚决主张严酷节俭、回返穴居社会 [注] 的环保主义者是这样计划的。人们希望，这样一来，大气中CO2的含量可以保持在百万分之450以下。人们普遍认为，这就可以让全球气候变暖的程度处在可容忍的上限以下。
(6). 1:Wind turbines and electric vehicles, however, both rely on dysprosium and neodymium to make the magnets that are essential to their generators and motors.
2:These two elements, part of a group called the rare-earth metals, have unusual configurations of electrons orbiting their nuclei, and thus unusually powerful magnetic properties.
3:Finding substitutes would be hard.
4:Motors or generators whose magnets were made of other materials would be heavier, less efficient or both.
2:These two elements, part of a group called the rare-earth metals, have unusual configurations of electrons orbiting their nuclei, and thus unusually powerful magnetic properties.
3:Finding substitutes would be hard.
4:Motors or generators whose magnets were made of other materials would be heavier, less efficient or both.
1:但风力涡轮发电机与电动汽车都要靠镝与钕来制造对电机和发动机极为关键的磁铁。
2:在这两种同属稀土金属的元素中，围绕原子核旋转的电子排列方式很不寻常，因此具有异乎寻常的强大磁性能。
3:很难找到它们的替代品。
4:用其它材料制造磁铁的发动机或电机或者更为沉重，或者效率不高，或二者兼有。
2:在这两种同属稀土金属的元素中，围绕原子核旋转的电子排列方式很不寻常，因此具有异乎寻常的强大磁性能。
3:很难找到它们的替代品。
4:用其它材料制造磁铁的发动机或电机或者更为沉重，或者效率不高，或二者兼有。
(7). 1:At the moment, that is not too much of a problem.
2:Though a lot of the supply of rare earths comes from China, whose government has recently been restricting exports (a restriction that was the subject of a challenge lodged with the World Trade Organisation by America, Europe and Japan on March 13th), other known sources, such as the now-abandoned Mountain Pass mine in California, pictured above, could be brought into play reasonably quickly.
3:At current levels of demand any problem caused by the geographical concentration of supply would thus be an irritating blip rather than an existential crisis.
2:Though a lot of the supply of rare earths comes from China, whose government has recently been restricting exports (a restriction that was the subject of a challenge lodged with the World Trade Organisation by America, Europe and Japan on March 13th), other known sources, such as the now-abandoned Mountain Pass mine in California, pictured above, could be brought into play reasonably quickly.
3:At current levels of demand any problem caused by the geographical concentration of supply would thus be an irritating blip rather than an existential crisis.
1:这一问题当前还不甚突出。
2:尽管大量稀土来自中国，而该国政府最近一直在限制出口（美国、欧洲与日本已就此于3月13日向世贸组织（World Trade Organisation）提起诉讼），但其它已知矿源，比如现在已放弃开采的加州帕斯山（Mountain Pass mine in California）（上图），可以在较短时间内重新开采供货。
3:按照当前的需求水平，供应来源集中于某地的会引起的任何问题都只不过会让人烦恼一时，不会造成生存危机。
2:尽管大量稀土来自中国，而该国政府最近一直在限制出口（美国、欧洲与日本已就此于3月13日向世贸组织（World Trade Organisation）提起诉讼），但其它已知矿源，比如现在已放弃开采的加州帕斯山（Mountain Pass mine in California）（上图），可以在较短时间内重新开采供货。
3:按照当前的需求水平，供应来源集中于某地的会引起的任何问题都只不过会让人烦恼一时，不会造成生存危机。
(8). 1:That will be hard, particularly for dysprosium.
2:Incremental improvements to motors and generators might be expected to bring demand down a bit.
3:But barring a breakthrough in magnet technology (the discovery of a room-temperature superconductor, for example) the three researchers’ figures suggest that the world’s geologists would do well to start scouring the planet for rare-earth ores now.
4:If they do not, the mood of the Chinese government may be the least of the headaches faced by magnet manufacturers.
2:Incremental improvements to motors and generators might be expected to bring demand down a bit.
3:But barring a breakthrough in magnet technology (the discovery of a room-temperature superconductor, for example) the three researchers’ figures suggest that the world’s geologists would do well to start scouring the planet for rare-earth ores now.
4:If they do not, the mood of the Chinese government may be the least of the headaches faced by magnet manufacturers.
1:这会是很困难的，对镝来说尤其如此。
2:发动机和发电机的逐步改进可能会让需求有所下降。
3:但这三位研究人员的数字说明，除非电磁技术发生突破（例如发现某种室温超导体），全世界的地质工作者还是现在就开始掘地三尺，全球搜寻稀土矿为妙。
4:如果他们不这样做，在令磁铁制造商头疼的事情中，中国政府的心情可能是最微不足道的了。
2:发动机和发电机的逐步改进可能会让需求有所下降。
3:但这三位研究人员的数字说明，除非电磁技术发生突破（例如发现某种室温超导体），全世界的地质工作者还是现在就开始掘地三尺，全球搜寻稀土矿为妙。
4:如果他们不这样做，在令磁铁制造商头疼的事情中，中国政府的心情可能是最微不足道的了。
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