Start oil piping steam heat tracing.
开启燃油管路的蒸汽伴热。
Shut off the oil piping steam heat tracing.
切断燃油管路的蒸汽伴热。
Electric heat tracing and steam jacket heat tracing in sulfur recovery unit have been compared in the light of economy and unit features.
从经济及装置特点两方面对硫磺回收装置电伴热和蒸汽夹套伴热进行了比较。
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。
Installing steam traps in the heaters and heat-tracing pipeline;
加热器、伴热管线选装蒸汽疏水器；
Installing steam traps in the heaters and heat-tracing pipeline;
加热器、伴热管线选装蒸汽疏水器；
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