创建一个镜像的结合曲线。
除了凹面镜，能量塔以外，还有第三种新的太阳能热技术。结合了曲线，盘状镜面和热发动机的装置。
In addition to parabolic troughs and power-towers there is also a third solar-thermal technology, which combines curved, dish-shaped mirrors with heat engines.
如果垂直分布曲线与已知灰羽范围相结合，火山灰浓度就可以计算出来。
If the vertical profile is combined with the known extent of the plume, a concentration can be calculated.
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