OPNn.开
OPabbr.观测点(=Observation post)
Ophioderma pendulan.带状瓶尔小草
Ophthalmic disease眼病
ophthalmoleukoscop光色觉镜
Ophicephalus argus乌鳢
Opuntia Milpa Alta米邦塔仙人掌
Ophiomusiumsimplexn.简式瓷蛇尾
Ophiorrhiza nutansn.垂花蛇根草
opuntia microdasys黄毛掌
opreational safety操作安全
ophthalmodiagnosis眼反应诊断法