等外

In this reaction,besides substitution products thiophenol etc,the reduction product benzene is formed.

反应中，除生笨硫酚等取代产物外，还生还原产物苯。

The mature embryo is corn posed of radicle, coleorhiza, plumule, coleoptile, scutellum and epiblast.That is the typical structure of the mature embryo of grass.

熟具有根、芽、盾片、芽鞘、根鞘、外叶等典型禾本科植物熟的结构。