It's mainly about the products and technology for the environmental protection and energy saving of diesel vehicles, such as natural gas or the other clean energy. For gasoline cars, if advanced, it's also ok. That's the direction and here are some details.
1.The product or technology that can make diesel oil burn completely - At present, it does not burn completely for diesel vehicles, wasting fuel and resulting in more exhaust particles and polluting the air.
2.The product or technology that can reduce the exhaust particles - Fix a processing unit at somewhere in the diesel vehicle thus to make the exhaust particles emitted into the air harmless after the purification treatment.
For No. 4 above, LNG (liquefied natural gas) is preferred.
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