YOU SAID:

the pressure is high in both but as the fuel inside the cartridge is consumed the difference becomes more and more evident

INTO JAPANESE

圧力は両方で高いが、カートリッジの中の燃料が消費されるとの違いがより明らかになります。

BACK INTO ENGLISH

Consume fuel in the cartridge pressure is high in both, but with the difference becomes more apparent.

INTO JAPANESE

消費燃料カートリッジの圧力は両方で、高いが違いとより明らかになります。