报道以呋喃甲醛和苯乙酮为原料,氢氧化钠为催化剂,采用超声波辐射合成糠叉乙酰苯的方法.With furfural and acetophenone as raw materials - furfurylideneacetophenone was synthesized by NaOH as catalyst under ultrasonic irradiation....
Women wear aprons in the kitchen.妇女在厨房里围着围裙.The chambermaid in our corridor wears blue checked gingham aprons.给我们扫走廊的清洁女工围蓝格围裙.Obstruction in the movement of Aprons during doffing in modern cards.新型梳棉机在落卷时皮板输送带(或皮圈,围裙)运行...
Imes removed his greatcoat from the cloakroom.艾姆斯从衣帽间取出他的大衣.He bought a greatcoat for himself of soothing proportions.他给自己买了一件尺码肥大舒适的大衣.Frank came in, his greatcoat over his arm, and handed it to Tony.弗兰克拿着自己的大衣进来了, 顺手把大...