Propane is usually used as fuel for engines.

丙烷通常用来作为发动机的燃料。

Propane is usually gaseous.

丙烷通常为气态。

Propane is mixed with air to form an explosive mixture.

丙烷与空气混合后形成爆炸性混合物。

Methane and propane are alkanes.

甲烷和丙烷是烷烃。

A cataluminescence(CTL) sensor for quantitative analysis of the explosive gases of propane and iso-butane in a mixture was proposed.

提出了一种用于定量分析混合气中丙烷和异丁烷爆炸性气体的催化发光（CTL）传感器。

I used propane to check for vacuum leaks.

我用丙烷检查有没有真空泄漏。

There are some propane based cars and Go-Karts.

可能还有些烧丙烷的汽车和卡丁车，但一时半会也搞不到。

These fuels include methane, propane and gasohol.

这些燃料，包括甲烷，丙烷和乙醇汽油。