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The names of the components obtained by distilling coal tar are as shown in the table below.
Literal
Coal-tar [object-を] distill-and obtain component-names [topic-は] below-table [genitive-の] as-per is.
Chemistry/industry textbook register. The embedded clause コールタールを蒸留して得られる ('that are obtained by distilling coal tar') is a relative clause modifying 成分名 ('component names'). 得られる is the passive of 得る ('to obtain, get') — the passive here is used because the components are obtained by someone unspecified, a common construction for scientific description. 下表の通り ('as shown in the table below,' 'as per the table below') is a fixed phrase used in technical writing for referring to tabular data. 下表 is an abbreviation of 下の表 ('the table below').