The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲酸酯 ( 118克 ) 回流着溶于1400毫升甲醇中.The crude, wet benzoate ( 118 grams ) was disslolved with reflux in 1,400 ml methanol.将粗制 、 湿的苯甲...
The products were analyzed simultaneously using ethyl benzoate ( EB ) as internal standard.以苯甲酸乙 酯 为内标物,一次性同时分析了塔釜产物中各组分含量.The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲...
她扮演天使，身上的双翼和头上的光轮一应俱全。She played the part of an angel, complete with wings and a halo.该抛光轮可避免涂抹抛光介质这一危险工序.The buffing wheel can avoid the hazardous process of polishing medium painting.哇, 快看那个! 最新型的光轮2000!Wow, look at it...
这一小段由一位大有前途的青年男高音倾情演绎。This small part was taken with elan by a promising young tenor.唱歌的四个声部是女高音 、 女低音 、 男高音和男低音.The four parts in singing are soprano, alto, tenor and bass.这位男高音歌手师承一位歌唱家.The tenor was a pupil of a singe...
After six weeks, the researchers infected all the young turkeys with listeria.六周之后, 研究人员让所有的幼鸡都感染李斯特菌属.Cooking food completely destroys listeria.而将食物煮熟则能够完全消灭李氏杆菌.Obiective To establish a fast and accurate method to exam...