CZ-2C is a two-stage liquid propellant launch vehicle, which is suitable for launching heavier LEO satellite.

CZ - 2c是适用于发射低轨道、质量较大卫星的二级液体运载火箭。

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Liquid oxygen started flowing into the two-stage Falcon 9 launcher at about 3 p.m. EST.

大约东部时间下午3点钟，液氧开始流入2级Falcon 9发射器。

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It is suggested that a two-stage model be necessary to describe a realistic liquid membrane separation system.

提出了用两阶段模型来描述实际液膜分离体系的观点。

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It is a two-stage rocket powered by liquid oxygen and kerosene.

BBC: The new Falcon 1 rocket has been lost on its maiden flight.

The concept calls for a two-stage rocket that would be powered by engines burning liquid oxygen and kerosene.

BBC: Science & Environment

One interesting aspect of the Antares design is its use of two Aerojet AJ-26 engines on its liquid-fuelled first stage.

BBC: Orbital's Antares rocket makes test flight