气极，病证名。以气虚为主证的劳伤虚损重证。
今年的冬季极寒使美国天然气库存量较5年平均水平下降3%，但交易员充满信心，认为一旦下降季节结束，供应量将重新飙升。
An extreme winter has US gas inventories 3% below the 5-year average, yet traders are confident that supply will come roaring back once the drawdown season ends.
一百五十七页的长度，这本书极惹人喜爱，很容易坐下来一口气读完。
One hundred fifty-seven pages in length, the book is so winsome that it is easy to read in a single sitting.
由于变极同步电机气隙磁场中将存在较大的谐波，这些磁场谐波对电机运行性能将产生一些影响。
In the gap magnetic field of pole changing synchronous machine, there would be large harmonics, which have some effects on the operating performance of the machine.
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