Other signs of concussion are stomach and head pain, muscle weakness and a loss in sharpnessofvision.
脑震荡的其他症状有胃痛、痛,肌肉无力,视力下降。
2
Sharpnessofvision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.
视觉的敏锐程度,尤指经斯纳仑氏图表所测结果。在斯纳仑氏图表上测得的一般的视觉敏锐度为20/20。
3
But besides noises, there are some other interference factors which weaken the vision effect of digital image greatly, like image contrast, image brightness and image sharpness, etc.