深孔双槽开槽器的改进 [炼油与化工 Refining and Chemicals] 分离式双管板列管换热器的设计与制造 Designing and manufacturing of the separated double tube-sheet exchanger [化学工业与...
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Its various divisions cover commodities trading, oil exploration and refining, fertiliser manufacturing and distribution, chemicals and financial services.
其各个部门涵括了商品交易，石油的勘探和炼制，化肥的生产和销售，化工以及金融服务。
These results were achieved in very difficult conditions in the refining, marketing and chemicals businesses.
这些成果是在炼油、销售和化工业务非常困难的条件下取得的。
These industries primarily include oil and gas exploration, production, transportation, and refining as well as chemicals and power generation.
这些工业主要包括油气勘探、生产、运输、提炼，以及化学和发电。
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