Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.In 2002, we develop Photo - catalyst & electronic Ionizer A...
I see my role as being a catalyst for change.我认为我的角色是促成变革。A catalyst is a substance which speeds up a chemical reaction.催化剂是一种能加速化学反应的物质.It acts as a catalyst in the process of fermentation.它在发酵过程中起触媒的作用....
A story endocarp may or may not become free from the mesocarp.坚硬的内果皮易于或不易与中果皮分离.We simply removed from the cracked endocarp with sterile tweezers.我们简单地用消过毒的镊子从裂开的内果皮中取出种子.The endocarp is hardened before the final swell.在...
英国最顶尖的教练大都坐在台边区。Most of the top British trainers were at the ringside.克莱恩本可以从世界顶尖模特中想选谁就选谁。Klein could have had his pick of the world's top models.我们的科学研究是顶尖的。Our scientific research is second to none....
All people like cleanness.人们都是愿意干净的.He preferred the cleanness and tidiness of the wild sod.他喜欢荒野草地的清洁和整齐.Keep cleanness, wear soft and cleanness shoes when walking on the floor.保持地板的清洁, 人在地板上行走时须穿干净软底鞋....
这也是把图片色彩模式从RGB转化到CMYK时 画面会变暗的主要原因.This is a picture to color mode from RGB to CMYK are dimmed when.这不离是当把色彩模式从RGB迁移转变到CMYK时画面会变暗的来因.This is when the color mode from RGB to CMYK conversion are dimmed when.果然, 研究人员在这对新发现的食...