中文: abbr. Occupational Health Nurse 职业健康看护; Occupational Health Nursing (AAIN journal) <职业卫生护理>(美国工业卫生护士协会杂志); otolaryngology-head and neck 头和颈-耳鼻咽喉科学
中文: abbr. over-horizon radar 超视距雷达; onset heart rate 起始心率; oil from hippophae rhamnoides 沙棘油; open hernia repair 开放疝修复术