OAN光接入网
Oint.哦; 哟; ... 啊; 唉; 哎呀(表示惊讶、痛苦、恐惧、赞叹等)num.零
o-aminobenzyl alcohol邻氨基苯甲醇
o carboxy cinnamic acid[化] 邻羧基肉桂酸
ovarian hormone extract卵巢素
ovicide and infanticide杀卵和杀幼
ov roadwaylying roadway上层路
o - chlombenzaldehyde邻氯苯甲醛
O-tolyl-acetic acid邻甲基苯乙酸
o - phenylene diamine邻苯二胺
ovarian chocolate cysts卵巢巧克力囊肿
O-ethyl thiocarbamate硫代氨基甲酸O-乙酯