It is a static approach, ignoring how demand for each shipyard's differentiated products varies over time.

价格差是个静态方法，忽视了每个造船厂的不同产品的需求随时间的变动。

I think it's time for a new approach that's different than the static approaches of the last century.

我认为是时候采用不同于上个世纪静态方法的新方法了。