orthopanadj.全色的
orthoadj.正色(性)的pref.正确;直;正;原
orthomethylacetanilid[医] 邻甲苯乙酰苯胺
Orthogonia basimaculan.天目胖夜蛾
orthocresol phthalein[医] 邻甲酚肽
orthographic exercise拼写练习
orthosis prescription矫形器处方
orthodontic separator正畸分牙圈
orthodontic anchorage正畸支抗
orthomagmatic deposit正岩浆矿床
orthophoto projection正射投影
orthographic sythesis正交合成