Oxnern.奥克斯纳oxn.牛；公牛oxyacetylene pipe cutter氧乙炔割管机Oxammonium hydrochloride盐酸羟胺oxy-acteylene blowpipe氧-乙炔吹管Oxytropis falcata Bge.镰形辣豆Oxymesterone measurement羟甲睾酮测量oxidative transformation氧化降解oxamide light stabilizer草酰胺类光稳定剂oxaflazane hydrochloride盐酸奥沙氟生oxy-natural gas burner氧气天然气烧嘴Oxytropis moellendorffiin.窄膜棘豆