The broadcast advertising model is not relevant to the narrowcast nature of the Web.

广广告模式和网络定向实质并没有多大联系。

The product has good catalytic property for the formation of diene stereospecific polymers.

制得叔碳酸钕具有对二烯烃良好定向聚合活性。

In general, the results mentioned above have matched the objectives as planed and would be useful for exploring the directional process design approach of bioseparation technology.

所得果对深入研究定向、具有预测功能生物质分离过程设计具有很好推广作。