基本解释[经济学]苄基三甲基氢氧化铵词组短语短语Benzyltrimethylammonium hydroxide solution 苄基三甲基氢氧化铵Benzyltrimethylammonium hydroxide solution in MeOH 苄基三甲基氢氧化铵benzyltrimethylammonium hydroxide更多词组专业释义经济学苄基三甲基氢氧化铵