After retrofit of no. 1 circulating-water pump pole-change in Jiujiang power plant, energy saving effect is obvious, it can reduce service power rate and increase total economy of units operation.
九江发电厂1号循泵变极改造后节能效果明显，对降低厂用电率、提高机组运行整体经济性的效果显著。
Here's how the seasonal change affects the weather: Around the time of the June solstice, the North Pole is tilted toward the sun and the Northern Hemisphere is starting to enjoy summer.
季节是这样影响天气变化的：约在6月份夏至的时候，北极斜向太阳一面，北半球开始享受夏天。
They sighted each pole, reading off measurements that were then used to calculate the change in elevation over each increment.
他们瞄准了每个极点，读出测量值，然后用这些测量值来计算每个增量上的海拔变化。
China's polar expedition ship will go to the North Pole in 2008 to study climate change.
中国极地探险队将于2008年去北极研究气候变化。
A periodic change in the distribution of pressure between the North Pole and a circle at about 55degree.
在北极点与大约55度N纬圈之间气压分布的周期性变化。
A periodic change in the distribution of pressure between the North Pole and a circle at about 55degree.
在北极点与大约55度N纬圈之间气压分布的周期性变化。
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