Effects of GaAs,Ga￣(3+) and As(V) on Germination Physiology of Vegetable Seeds.;
GaAs、Ga~（3＋）和As（V）对蔬菜种子萌发生理影响研究
v+v can be eight different kinds of syntactic structures and it is a typical ambiguous structure in Chinese, and so v+v is one of the most difficult problems in Chinese information processing.
现代汉语中v+v可以形成8种不同的句法结构,是一个典型的歧义格式,因而是中文信息处理中的一个难点。