Newton-second

例句：

1. 1. The new model of the car has a Newton-second engine.
   这款新车的引擎是牛顿秒级别的。
2. 2.In physics, Newton's second law states that force is directly proportional to the acceleration of an object.
   在物理学中，牛顿第二定律指出力与物体的加速度成正比。
3. 3. The scientist used a Newton-second clock to measure the time it took for the light to travel from the sun to Earth.
   这位科学家使用一个牛顿秒计时器来测量光从太阳到地球所需的时间。