During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.在这个过程中乙醛取代了氧作为氢的受体.Decanoyl acetaldehyde was extracted from houttuynia cordata thunb by the method of solvent extraction process.利用...
I had to wear long sleeves to stop myself scratching.我只好穿上长袖衣服以免自己挠痒。It wasn't easy scratching out a living in those hard times.在那段艰难的日子里,糊口真不容易.If you keep scratching away at that spot, you'll break the skin.你...
She was only six and still missing her front teeth.她才6岁，门牙还没长出来。One of his front teeth has dropped out.他的一颗门牙掉了.One of his upper front teeth was loose.他的上排门牙有一颗松了劲....
The drug put Simpson in a lull for thirty minutes.药物使辛普森安静了30分钟.Ground fighting flared up again after a two - week lull.经过两个星期的平静之后,地面战又突然爆发了.There was a lull in political violence after the election of the current presi...
An amusement park is the perfect locale for a bunch of irrepressible youngsters to have all sorts of adventures.游乐场是一帮精力过剩的年轻人寻求各种惊险刺激的绝佳场所。The director is looking for a suitable locale for his new film.导演在为新片物色合适的拍摄场地.I...
The structure, the principle of work, bauxite floatation of BF - L floatation machine were presented.本文介绍了BF -L 型浮选机的结构特点, 工作原理及铝土矿选矿的适应性研究.B factor ( BF ) in thyroid function hyperfunction sickness blood serum content a...