以下为句子列表:
英文: Thus it is possible to obtain products ranging from gaseous materials taken off the top of the distillation column to a heavy residue or “bottom”, which is usually nonvolatile, with correspondingly lighter materials taken off at intermediate points.
中文: 由此,我们有可能获得石油产品,这些产品包括从蒸馏塔顶部得到的气态物质,包括比重较大的渣油或称“残渣”(一般而言挥发性较差),以及从蒸馏塔中部得到的比重较小的其他相应物质。
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