The brushless direct current motor (BDCM) used in attitude control and energy storage flywheel features a structure of large equivalent air-gap and large ratio of diameter to length.

姿控、储能飞轮用无刷直流电动机具有大有效气隙、大径长比的结构特点。

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They do, however, still breathe air, having never developed anything equivalent to the gills of their earlier marine incarnation.

然而，他们虽然仍呼吸着空气，却从未进化出类似于腮这种早期海洋生物的器官。

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They say they can scale it up for use in air conditioning, and aim to build 3.5-kilowatt devices – equivalent to a basic home model – which could be dotted around buildings.

他们称他们可以把应用范围扩大到空调中，并且打算建成一批3.5千瓦，等同家用基本型的设备，安置在建筑物四周。

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At the event, HGST is comparing the power consumption between a helium-filled drive and an equivalent air-filled drive side-by-side, demonstrating a reduction in power consumption for the helium-filled drive of 23 percent.

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The motor is guaranteed to last for five years, and the firm estimates over its lifetime it should be able to pump the equivalent amount of air needed to fill 26 million party balloons.

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Sunday is a light air travel day, but by Monday the effects of the furloughs should start to "snowball, " creating an air travel mess the equivalent of having a "Hurricane Sandy in the North and Hurricane Katrina in the South, " said Lee Moak, president of the pilots union.

WSJ: Airlines, pilots sue government to stop furloughs