A. expansion water tank cleaning.
膨胀水箱的清洗。
I work at a small fish tank cleaning business.
我在一家小型鱼缸清洁公司工作。
The operation of tank cleaning is a regular work in oil tank farm with danger.
清罐作业是油库一项经常性的工作，具有较大的危险性。
Cleaning drying tank, the element is dry and without water trace.
净化烘干槽，独特的烘干前处理技术，工作干燥无水渍。
Cleaning drying tank, the element is dry and without water trace.
净化烘干槽，独特的烘干前处理技术，工作干燥无水渍。
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