The writers determined by AAS the contents of Zn,Fe,Cu ,Ca,Mg, Cd in the occiput hair in 30 cases of acute vision drop (test group) and in 30 controls. 笔者应用原子吸收法测定了急性视力降低(实验组)和正常人(对照组)各30例枕发中锌(Zn)、铁(Fe)、铜(Cu)、钙(Ca)、镁(Mg)、镉(Cd)含量的变化。
It came within my range of vision. 该物体进入了我的视野。
We need someone with real vision to lead the party. 我们需要具有真知灼见的人来领导这个党。
The ship came within range of vision. 已经看得见那条船了。
How do you cope with the problem of poor vision? 怎样解决视力不好这一难题呢?
The patient is complaining of acute earache. 病人说耳部剧痛。