In the end, they obtained multiple samples of 24 types of tissue and organ from 15 donors.

最终，他们从15位捐赠者那里获得了24种组织器官的多份样本。

Instead, the computer runs multiple samples per pixel to see potentially hundreds or thousands of ways the light could bounce, and then averages those to create a crisp image.

反之，计算机对每个像素运行多次模拟，以测试数百个或可能数千种光线反射方式，然后进行平均，以创造清晰的画面。