We have an auxiliary generator in case of power cuts.

我们有一台万一断电时使用的备用发电机。

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The steam turbine generator and auxiliary generator.

汽轮发电机与汽轮机配套的发电机。

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We have an auxiliary generator in case of power cuts.

万一没有电了，我们有辅助的发动机。

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Auctioneer Jonathan Humbert said the bus, which can hold 35 passengers, has just 28, 000km (17, 398 miles) on the clock and it has its own auxiliary generator and air supply in case anyone attacked it.

BBC: Margaret Thatcher's "Battle Bus"

In this case, the CrossBlue acts as an auxiliary electrical generator.

ENGADGET: VW unveils CrossBlue plug-in SUV with iPad mini headrests and 85MPGe efficiency (eyes-on)

It carries an auxiliary fuel-cell generator in the pickup bed that the Army will use to power communications equipment.

FORBES: Don't put one of these in your garage just yet.