该工艺方法可节约能源约70％，缩短生产周期约80％。

This technique could save power (by (70%) and shorten the time of the. purification (by80 % ).

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经研究，发现地极还存在长期的漂移和周期约30年的长周期摆动。

The study found that there are still a long-term polar drift and cycle of about 30 years of long-period oscillation.

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这一周期约90%的时间为冰川时代，在那期间，我们北半球大部分覆盖着厚达数英里的冰层。

During glacial ages that exist about 90% of the time, our Northern Hemisphere is mostly covered with ice up to several miles thick.

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