论述了以相转移催化剂催化合成邻硝基茴香醚的新方法.The process of synthesizing o - nitroanisole by using phase - transfer catalyst was described.丁化羟基茴香醚: 一种白色蜡状的苯酚抗氧化剂, CHO, 用于保存脂肪和油, 尤指在食物中.BHa: a white, waxy phenolic antioxidant, CHO, used to p...
...a planet orbiting a star in the constellation of Cepheus.围绕仙王座中一颗恒星旋转的行星The moon and Jupiter pair up near Algedi in the eastern part of the constellation Capricornus.摩羯座的东部,天津四附近的月亮和木星结成对.It isn't far from the gr...
液泡中的丹宁内含物也已用显微镜证实.Tannin inclusions in vacuoles have also been demonstrated by the electron microscope.液泡内含物存在于幼嫩种子胚乳的脂肪珠滴中.Vacuolate inclusions are present in the fat globules of the endosperm of young seeds.I1等级的钻石常含有肉...
在被担架抬下跑道时,她明显处在巨大的痛苦中.She was clearly in tremendous pain as she was carried off the track on a stretcher.在被救护人员从火车上抬下时,他死了.He expired as he was being carried from the train by ambulance men.22岁的鲁尼倒在地板上立刻呼叫队医.他被担架抬下球场送去医院...
Two strangers menaced him with pistols and forced him to give up his money.两个陌生人用手枪威胁他并强迫他拿出所有的钱。People were shooting off pistols in the streets to celebrate the victory.人们在街上朝天鸣枪庆祝胜利.Mauser pistols can only be seen in f...
Java is a densely populated island.爪哇岛人口稠密。Java comes with a plethora of ready - made types.Java配套提供了数量众多的 现成 类型.Marco Polo is said to have sailed on the Pacific on his way to Java in the thirteenth century.据说，13世纪时，马可·波...