When the gasoline engine is running, {HEAD ~ fuel particles} splash to {TAIL ~ the fuel tank cover} and are absorbed by the foam in the fuel tank cover 
splash to
When the gasoline engine is running , { HEAD ~ fuel particles } splash to { TAIL ~ the fuel tank cover } and are absorbed by the foam in the fuel tank cover
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH