大多数的父母反应介于中间。
一旦反应堆的控制杆置于核燃料棒的中间了,我们应该怎么将裂变减慢到我们可控制的程度呢?
Once the reactor's control rods are between sections of fuel rods, how is fission slowed to where it is controllable?
这方法中包括直接,观测中间产物,这些中间产物是反应,机制中某个机制的基础。
Including, above all, direct observation of the intermediates that you would expect on the basis of one mechanism or another.
And what it's used is to convert one type of group, what's called a carboxylic acid into another type of very reactive intermediate, which is called an acid chloride.
它被用来将一类被称作羧酸的化合物,转化成另外一类活性很高的反应中间体,也就是酰氯。
But in terms of drugs that don't look like maybe this compound was used in the synthesis, many of them might have used thionyl chloride, because it generates such a nice reactive intermediate that you can go on and make a bunch of different compounds from that intermediate.
但是对于药物来说,它们可能跟合成过程中用到的这种化合物并不相像,很多药物的制造过程中都会用到亚硫酰氯,因为它能产生活性如此之高的反应中间体,以至于你可以继续利用反应中间体,来制造一堆不同类型的化合物。
Some proteins can be switched from an 'off' position where they don't do anything to an 'on' position where they now do something by only a chemical reaction like this where a phosphorous is added.
一些蛋白质可以从关闭状态的,无所作为,到成为开启状态后,执行某种功能,中间只发生了一个引入磷酸基的化学反应
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