The one-level turbine engine with one pump is composed of a turbine, a turbine shaft, a booster pump wheel and an expansion chamber shell.

一泵一级涡轮发动机由涡轮、涡轮轴、增压泵轮和膨胀室壳体组成。

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The divided-flow two-level turbine engine with one pump is composed of a turbine, a turbine shaft, a two-level booster pump wheel, a guide pulley and the expansion chamber shell.

分流式一泵两级涡轮发动机由涡轮、涡轮轴、两级增压泵轮、导轮和膨胀室壳体组成。

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The divided-flow two-level turbine engine with two pumps is composed of a turbine, a turbine shaft, a two-level booster pump wheel, a guide pulley and the expansion chamber shell.

分流式两泵两 级涡轮发动机由两级涡轮、涡轮轴、两级增压泵轮、导轮和膨胀室壳体组成。

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Controlling steering using electric motors also helps to reduce fuel consumption and hence carbon-dioxide emissions. (Electric motors require power only when the steering wheel is turned, whereas a hydraulic pump drains power from the engine all the time.) Ford reckons 90% of its cars will have electronic steering within three years.

ECONOMIST: Rational consumer