The car was sporting and rather dangerous, and the lights were powerful affairs fed by acetylene gas.
这辆车很运动, 而且相当危险, 灯是用乙炔气供给的强大的东西。
英语百科
Acetylene
Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities.