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steam tracing
avia. 蒸汽伴管
chem. 伴热蒸汽管
oil 蒸汽伴随
oil.proc. 蒸汽伴热
tech. 蒸汽保温加热器; 伴热蒸气管
steam tracing: 8 phrases in 2 subjects
Oil / petroleum6
Technology2