pain receptor meaning in English

痛觉感受器

Severe burns stop hurting after a while because the burns damage the pain receptors in the skin
严重的烧伤由于破坏了皮肤内的痛觉感受器，因此在一段时间内，烧伤的部位不会感到痛楚。
As pain receptors are absent in our retinas , we may not feel immediate pain while our eyes are being injured . worse still , symptoms of visual impairment will begin to appear hours after irreparable damage has already been done
由于视网膜内没有痛敏神经，眼睛被灼伤时并不会感到即时的痛楚或不适，而视觉毛病亦可能会在数小时后才出现，结果眼睛便在不知不觉中受到伤害！
The danger to vision of inadequately protected viewing of the sun is significant because light - induced retinal injuries occur without any feeling of pain ( there are no pain receptors in the retina ) , and the visual effects do not occur for at least several hours after the damage is done
在不适当的保护下观测太阳是极度危险的,因为光照造成的视网膜损伤是不会产生痛楚的(视网膜上没有痛觉神经) ,以及视网膜会在受损后最少数小时后才会出现徵状