Gas externalcombustion type lime kiln belongs in a shaft kiln of gas combustion type.
气烧外燃式石灰炉属气烧竖炉。
2
You mentioned steam engines in this article — are there any advantages to steam engines and other externalcombustion engines?
你在这篇文章中提到蒸汽发动机——蒸汽发动机和其他的外燃机有什么优势？
3
Analyses the conditions of energy efficiency for the externalcombustion systems. Explains the advantage and energy saving for the internal combustion systems by an example.