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....
The drain current Ids depends on Vgs with an index of 2.5.实验结果表明改进的模型更精确,Ids与Vgs的呈2.5次方的指数关系.Here are our identifications. Or , Here are our IDS.这是我们的工作证件.In this thesis at first the situation of the network security and...
I cannot give at second hand any impression of his vivacious delivery.他的叙述绘声绘色,他的原话经我一转述就要大为减色.The vivacious girl made a good cheer-leader.这个充满活力的女孩做了啦啦队队长。She's beautiful, vivacious, and charming.她漂亮活泼，魅力十足。Wild ri...
a cranky old truck一辆有毛病的旧卡车...a bunch of stupid, cranky, uncooperative old fools.一群老朽愚昧、乖戾不合作的蠢货a cranky person脾气坏的人Vegetarianism has shed its cranky image.素食主义者已经摆脱了其古怪的形象。Vegetarianism has shed its cranky image...素食主义者...
And that one looks like a double - decker bus with a rabbit on top.那个看起来像 双层 巴士顶上的兔子.Each face is the size of a double - decker bus.钟的每一面都犹如 双层 大巴一样宽.Freda: What can you see a tram or a double - decker ?弗蕾达: 你可以看到有轨电车或 双...
Just play it safe, cover your ass, keep your head down.要谨慎行事，保护好自己并保持低调。They've really been kicking ass lately — busting places up, harassing everybody.他们最近真是让人气不打一处来，闹得天翻地覆，搅得每个人都不得安宁。He was generally disliked and ...
Come here, you little rascal!过来，你这个小坏蛋！If he had done otherwise, I should have thought him a rascal.如果他不这样做, 我就认为他是个恶棍.Keep an eye on that rascal. Don't let him run away.看住他,别让这坏家伙跑了!...