应特别密切注意氮和二氧化硫的化合物。
Compounds of nitrogen and sulphur dioxide should be particularly closely watched.
重质燃料油中通常含有一定量的硫及硫化物，燃烧过程中绝大部分形成二氧化硫，二氧化硫在一定条件下与氧化合形成三氧化硫。
The most of sulfur and sulfide that exist in the heavy fuel oils can be transformed into SO2, and SO2 can be oxidized to form SO3 during combustion of heavy fuel oil at certain condition.
二氧化硫可直接用作制酸原料气，化合物可直接用作优质水泥熟料。
The sulfur dioxide can be directly used for preparing acid raw gas and the compounds can be directly used as excellent cement clinker.
二氧化硫可直接用作制酸原料气，化合物可直接用作优质水泥熟料。
The sulfur dioxide can be directly used for preparing acid raw gas and the compounds can be directly used as excellent cement clinker.
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