focal point

In what sense was the discovery of America a focal point in history?

从什么意义上讲美洲的发是历史上的一个重大事件？

Television has now become the focal point of family life in many countries in the world.

世界上的许多国家看电视已经成为人们家庭活中的主要消遣。

We will have focal point study for moving and fixing grid law etc., have the application to the free surface search of he impressure influent fields.

数值模拟中重点对移动和格法等进行了研究，并应用格法对无压渗流场自由面进行了搜索计算。