Since the costs of science were rising faster than inflation, some restriction on funding was necessary.

既然科学成本上涨快于通货膨胀，资助上的一些限制是必要的。

The biggest restriction on our resources is the number of hours we can devote to something.

我们资源上的最大限制是我们可以投入到某件事情上的时间。

Truck drivers at large don't like the new speed restriction on the highway.

大多数卡车司机不喜欢高速公路上新的限速规定。

So there's no restriction on theta.

在θ上没有限制。

I think some restriction on the speed of cars is necessary.

我认为车辆速度的限制是有必要的。