在实验室中研究了一种从石油残渣油制取建筑沥青的新工艺——水蒸汽裂解缩合。
A new process for producing roofing asphalt from petroleum residua by steam cracking and condensation has been studied in the laboratory.
图为污水池里的油砂残渣，其中混有沙子、污水以及萃取未精炼的石油产品后所残留的有毒化学物质。
A containment pond holds tar sands tailings, consisting of a mixture of sand, water, and toxic chemicals that remain after the unrefined oil products have been extracted.
石油焦、石油沥青及其他石油或从沥青矿物提取的油类的残渣。
Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals.
在一纸板生产车间，木材残渣(树皮和碎片)用来取代传统燃料液化石油气。
In a chipboard production plant, wood residues (barks and chips) were used to replace conventional fuel i. e. LPG.
在一纸板生产车间，木材残渣(树皮和碎片)用来取代传统燃料液化石油气。
In a chipboard production plant, wood residues (barks and chips) were used to replace conventional fuel i. e. LPG.
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