However, it is reasonable to adopt steam jacket heat tracing for sulfur recovery unit, as the steam produced by the unit itself has no other utilization.
对硫磺回收这类有自产蒸汽且蒸汽又难有别的利用途径的装置，采用蒸汽夹套伴热是合理的。
2
The Indonesia coal resources and its upper low ash and sulfur content characters were discussed systematically. Indonesia coal utilization direction in China was put forward if imported.
笔者系统地阐述了印尼的煤炭资源及其特低灰和特低硫分的特征，并提出了中国进口印尼煤炭的合理利用方向。
3
Coal enterprises are the fountainhead in coal's production and utilization, so it is of great significance to research the desulfurization and sulfur-fixing in coal enterprises.