等差数列\(\{a_{n}\}\)、\(\{b_{n}\}\)的前\(n\)项和分别为\(S_{n}\)和\(T_{n}\)，若\( \dfrac {S_{n}}{T_{n}}= \dfrac {2n+1}{3n+2}\)，则  \( \dfrac {a_{2}+a_{5}+a_{17}+a_{22}}{b_{8}+b_{10}+b_{12}+b_{16}}=\)______．

【考点】等差数列的概念

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