Fix the grammatical mistakes: This is partially due to the reason that VHTR's coolant, helium gas is much most costly than LFRs' coolant, and because of the strong structure that VHTR consists, it cost more to build.
This is because the VHTR is more expensive than the LFR, but because the VHTR is much more expensive than the LFR, the VHTR is more expensive than the LFR.
Correct: This is because the VHTR is more expensive than the LFR, but because the VHTR is much more expensive than the LFR, the VHTR is more expensive than the LFR.
Correct: This is because the VHTR is more expensive
The VHTR is a very expensive product, and the VFR is a very cheap product.
Correct: The VHTR is a very expensive product, and the VFR is a very cheap product.
Correct: The VHTR is a very expensive product, and the VFR is a very cheap product.
Correct: The VHTR is a very expensive product, and the VFR is a very cheap product.
Correct: The VHTR is a very expensive