So even though ExxonMobil pumps oil, it can't guarantee that its refining unit will be able to profitably process a barrel into gasoline or heating oil.
所以，尽管埃克森美孚能够开采出石油，但却不能保证公司的冶炼部门将原油冶炼成汽油或燃料油后就能赚钱。
The PWT heating unit of the DWE product line represents the most important building block of the heating installation. Mineral or synthetic oil can be employed as the thermal transfer medium.
DWE系列的PWT加热器是整个加热装置的核心部件，作为载热介质，可以使用有机油和合成油。
The PWT heating unit of the DWE product line represents the most important building block of the heating installation. Mineral or synthetic oil can be employed as the thermal transfer medium.
DWE系列的PWT加热器是整个加热装置的核心部件，作为载热介质，可以使用有机油和合成油。
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