年龄谱(age spectrum):在40Ar/39Ar年龄测定中,常采用分阶段加热技术,将不同温度阶段析出的氩计算出相应的40Ar/39Ar年龄,并用析出39Ar的积累百分数...
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This can be terrible news for those at both ends of the age spectrum.
对于那些在年龄谱两端的人来说,这可是可怕的消息。
At the other end of the age spectrum are accommodation and health-care facilities for elderly people.
在年龄结构的另一端,老年人需要膳宿和医疗保健设施。
At the other end of the age spectrum, state pensions systems face difficulties now, when there are four people of working age to each retired person.
而在年龄段的另一边,国家退休金系统目前面临困难,每四个工作的人负担一个退休人员。
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