OPNn.开
OPabbr.观测点(=Observation post)
Opunfia diUenii haw仙人掌
Ophiomyxa australisn.澳洲粘蛇尾
ophthalmothermomete阴温度计
opioid use disorder鸦片类使用障碍(F11)
Ophiacanthadallasiin.戴氏棘蛇尾
ophthalmic medicine眼药
ophthalmic diseases眼科疾病
Ophyra chalcogaster斑跖黑蝇
ophthalmic reaction眼反应
ophiolite formation蛇绿岩建造