基本解释[化] 甲醛同根派生 oxymethylene相关词英汉例句Keywords poly(oxymethylene);irradiation;CaCO 3; 聚甲醛;輻照;納米碳酸鈣;oxymethylene copolymer fibre 甲醛共聚物纖維oxymethylene diphosphoric acid 氧亞甲焦磷酸oxymethylene更多例句