The drive section is filled with high pressure helium gas.
Or it could merely mean that high gas and housing prices are hitting hard.
The high pressure gas is known as the driver gas.
These consisted of long copper pipes, fired with high pressure gas.
One analysis found that even the wealthy felt "less rich" because of higher gas and home-heating costs.
The efficiency of the chamber can be further increased by the use of a high pressure gas.
Frequently a rotating bar or ball with a small opening is placed in the path of a high pressure gas.
It is designed to deflagrate, or burn, to produce high pressure gases.
The company said that higher gas and heating oil prices had reduced its customers' disposable incomes.
The breech and the barrel must resist the high pressure gases without damage.