Corneal ulcers occur most often in patients who use extended-wear soft contact lenses.
角膜溃疡最常发生于长期使用软性角膜接触镜的病人。
2
It brings lightweight over-the-head single earpiece design for comfortable extended-wear use.
舒适、长时间戴用的轻便头戴式单听筒设计。
3
While most laptops will be obsolete before their batteries wear out, we are sensitive to the desire to occasionally carry an extra battery for extended field use.