graininess

基本解释

That’s because you want to use the fastest possible shutter speed to stop the action. But what about graininess?
使用快速胶片的目的是为了用最快的快门来凝固动作场面，但是，该不该考虑颗粒度呢？
“We also want to have the implant do some intelligent processing that can help to enhance the contrast and the graininess of the image,” he says.
“我们也想拥有一种能够对图像进行智能化处理以提高对比度和颗粒度的植入装置”，他说道。
The Planck length is far beyond the reach of any conceivable experiment, so nobody dared dream that the graininess of space-time might be discernable.
“普朗克长度”远远超出了任何可想到的实验范围，因此没有人敢想象时空的微粒态也有可能被观察到。

And he has, although this may be an illusion produced by the graininess of the image, a dimple in his chin.
NEWYORKER: Labyrinth
There was a graininess to the air, which had itself warmed and grown windless, as it always did before a storm.
NEWYORKER: Great Experiment
The resulting graininess and color shifts make the viewfinder virtually unusable.
FORBES: Pixel-Packin' Camcorder