多聚原花青定的组成单元以2，3-顺式构型为主。
The procyanidin is primarily consisted of units with 2,3-cis configuration.
两种单宁分子的组成单元大部分具有2，3-顺式构型。
The basic structural units in both tannins are of 2, 3-cis-configuration.
结果表明标题化合物稳定，顺式构型分子内有氢键，反式则没有。
The results show that the title compound is stable; the cis configuration has intramolecular hydrogen bond while trans configuration dose not.
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