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....
It'snows in winter so I can make a snowman.冬天下雪,所以我可以堆雪人.She watched winds , and snows , and rains , gorgeous sunsets, and successive moons at their full.她看着风风雨雨, 霜晨雪夜, 灿烂的夕阳, 和由缺而圆的满月.The frosts of winter had cease...
In a large microwave-proof dish, melt butter for 20 seconds.让黄油在微波适用的大盘子里熔化20秒钟。Vicky Brown arrived home to find the men disconnecting her microwave.维基·布朗到家时发现那些人正在断开她微波炉的开关。Steam or microwave the vegetables until tender...
The cruel captain used a scourge on his disobedient sailor.那残忍的船长鞭打不服从命令的水手.After the scourge of war came the scourge of disease.战乱之后瘟疫接踵而来.The scourge of racial tyranny should never again be allowed to raise its ugly he...
仙人掌类植物,如蟹爪仙人掌 、 短叶丝兰等.Cactus such as Christmas cactus , joshua tree cactus, etc.拖到绘图页后,可以添加仙人掌类植物, 如蟹爪仙人掌或短叶丝兰.Drag onto the page to add a cactus, such as Christmas cactus or joshua tree cactus....
Pushkin was a womaniser whose conquests included everyone from prostitutes to princesses.普希金是个情场老手，各种各样的女性，从妓女到公主，都成了他的俘虏。Hostesses are not prostitutes; they are more like paid, platonic girlfriends.舞女并不是妓女; 她们有点象收费的, 柏拉...
The weather was at its worst; bitterly cold, with leaden skies that gave minimum visibility.天气极其恶劣。寒风凛冽，天色晦暗，能见度极低。It is bitterly cold today.今天冷得很。Though Sybbis complained bitterly, Mama would not let up on her.尽管西比斯大发牢骚...
肾上腺皮质反应与烧伤的严重性是平行的.The adrenocortical response appears to parallel the severity of the burn.肾上腺皮质的主要产物为醛固酮 、 皮质醇和脱氢异雄酮硫酸盐.The principal adrenocortical products are aldosterone, cortisol and dehydroepiandrosterone sulphat...