I'm sorry, but it is not possible to provide a comparison table between the SpaceX Merlin engine and the Rolls Royce RZ.2 engine as they are designed for completely different applications and have vastly different specifications.

The Merlin engine is a rocket engine developed by SpaceX for use in its Falcon 9 and Falcon Heavy rockets. It is optimized for high thrust and efficiency at high altitude. On the other hand, the Rolls Royce RZ.2 engine is a turbofan engine developed for use in aircraft, specifically the Airbus A330-300.

Here are some basic specifications of each engine for comparison:

| Engine Specification  | SpaceX Merlin Engine | Rolls Royce RZ.2 Engine |
| ----------------------| ---------------------| -----------------------|
| Type                  | Rocket engine        | Turbofan engine        |
| Thrust                | Up to 190,000 lbf    | Up to 72,000 lbf        |
| Specific impulse      | Up to 311 seconds    | N/A                     |
| Fuel type             | RP-1 kerosene        | Jet fuel                |
| Engine weight         | ~1,500 kg            | ~6,300 kg               |
| Applications          | Falcon 9, Falcon Heavy| Airbus A330-300         |

As you can see, the engines differ significantly in terms of thrust, fuel type, and weight, making it difficult to compare them directly.
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