等视力线 isopter
视力轴线 Eyesight Axis
管线的视力鉴定 visual identification of pipe line
有时也可称为视力线 Sighting line
视线、视力 sight
阵线视力 front sight
视线 视力
Visual acuity
以上为机器翻译结果，长、整句建议使用 人工翻译 。
事实上，当时尼采的视力正在变坏，长时间将视线固定在一张纸上令他感觉疲惫和痛苦，还常常伴有欲裂的头痛。
His vision was failing, and keeping his eyes focused on a page had become exhausting and painful, often bringing on crushing headaches.
youdao
大大改善了视力差的运动视线。
Greatly improved the poor vision of the movement of sight.
应用推荐
模块上移
模块下移
不移动