目的以对羟基苯甲醛为底物,通过微生物的转化作用生物合成天麻素.Aim To synthesize gastrodin via biotransformation of microorganism using p - hydroxybenzaldehyde as substrate.方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.Methods: α - Bromo - 4 - benzyloxy ac...
In this weather the cliff face was a foggy drop into infinity.在这种天气条件下,雾蒙蒙的悬崖隐入广漠无限之中.Reach me a rose, honey, and pour me a last drop into that there crystal glass. "递给我一朵玫瑰花, 宝贝, 再往那只水晶杯子里给我倒最后一滴酒. ”Product automatic dr...
There were ducks quacking on the lawn.草地上有几只鸭子在嘎嘎叫。For the rest it was just a noise, a quack - quack - quacking.除此之外,便是一片噪声, 一片嘎嘎嘎的叫嚣.The eyeless creature with the quacking voice would never be vaporized.那没眼睛的鸭子嗓也不会给蒸发....
The degree provides a thorough grounding in both mathematics and statistics.该学位课程将为数学和统计学打下扎实的基础。One in five young adults was struggling with everyday mathematics.1/5的年轻人做日常的数学计算都费劲。We had a very good mathematics mistres...
So we're trying to redress the balance and to give teachers a sense that both spoken and written language are equally important.所以我们正努力恢复平衡，让教师们感到口语和书面语同样重要。You must seek redress in the law courts.你应当通过法律途径要求赔偿。Any ...
Avoiding mosquito bites is easier said than done.防蚊叮咬好说难做。Tick bites can cause Lyme disease.被蜱叮咬会引发莱姆病。This cream contains a mild analgesic to soothe stings and bites.这种乳膏含有一种性能平和的止痛剂,能缓解被螫咬后的疼痛....