Create a mask, and using the black brush set to a low Opacity, erase parts of the noise to make it blend in.
创建了一个遮罩，用黑色的笔刷设置为低透明度，消除零件的噪音使它融入。
Do the same thing as before, but use a pointy shape like below as the mask. This time the opacity mask will look like the image below.
像之前一样重复操作，但使用尖的形状的不透明面板如下图所示。这次不透明面板如图所示。
Adjustment layers act like real layers allowing one to adjust the strength through opacity or even apply a mask to the adjustment.
调整图层如同一个真实的图层一样允许你调整它的透明度，甚至你还可以为它做一个蒙版。
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