右图则显示了氯化物的浓度分布，而其也恰好在出现臭氧洞的地方呈现出高值分布。
The right image shows the concentration of chlorine monoxide, which is concentrated over the Arctic where the ozone hole developed.
原料石灰石采用洞采方法，与露天采集的原料比，纯度高、杂质少、质量稳定。
Comparing to raw limestone opencast collected, that exploited from cave is higher in purity, less in impurity and steadier in quality.
水布垭导流隧洞具有水头高，流量大，洞线长，地质环境差等特点，因而技术问题较多，难度较大。
The diversion tunnels of the Shuibuya Project feature high head, big discharge, long tunnel line and complicated geologic conditions.
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