Ortholan奥尔托朗
orthoadj.正色(性)的pref.正确;直;正;原
orthodrhombic experiment正交实验
Orthopristis chrysoptera金鳍锯鳃石鲈
ortho-phenylenediamine邻苯二胺
ortho-aminobenzoic acid邻氨基苯甲酸
orthoquartzitic sandstone正石英岩
orthopedic damage control骨科创伤控制
Orthoraphium grandifoliumn.大叶直芒草
orthodontic microimplants微螺旋正畸种植体
orthonormal wavelet basis正交小波基
Orthoptic cardiac surgery心脏直视手术