net aperture area

例句：

1. 1.The net aperture area of the camera is 20 square millimeters.
   相机的网孔面积为20平方毫米。
2. 2. The manufacturer claims that their product has a net aperture area of 30 square meters.
   制造商声称他们的产品具有30平方米的网孔面积。
3. 3. The engineer measured the net aperture area of the screen and found it to be within the acceptable range.
   工程师测量了屏幕的网孔面积，发现它处于可接受范围内。