Metal deep into the air spinning process to obtain national invention patents.

大深度金属进风口旋压工艺获得国家发明专利。

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Companies are even reviving ideas of storing wind-generated energy using compressed air or spinning flywheels.

一些企业甚至正在再次提出想法用压缩空气或旋转飞轮储存风力生产的能源。

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The turbines' spinning blades cause a drop in air pressure, which can kill bats.

涡轮机旋转的刀片导致风压下降，可能杀死蝙蝠。

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His scheme replaces the chimney with a tornado-like vortex of spinning air, which could extend several kilometres into the atmosphere.

ECONOMIST: Alternative energy: The power of spin | The

This is the so-called jet stream, the fast river of air that helps drive our weather, which interacts with the storm's updrafts to create a spinning column of air.

CNN: The making of a nightmare tornado

His fondest claim, the one most likely to send his pen spinning into the air, is that his issues are mainstream issues.

ECONOMIST: Randy Tate��s factory