星形聚合物的合成方法主要分为2大类[3]:先核后臂法(core first)与先臂后核法(armfirst)。近年来偶氮苯类聚合物的研究也引起了广泛关注[5-6]。
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...【31,之后几乎所有的高分子聚合方法都被应用于星形聚合物的合成,但事实上可以按照路线将其分为两类【4】:先核法(core first),指由多官能团引发剂引发单体的聚合。
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core-first technique 先核后臂法
core-first 先核后臂法
first core 第一堆芯 ; 第一炉料
first core loading 首次堆芯装料
first core inventory 首次堆芯装载量
First American core logic 第一美国核心逻辑 ; 逻辑
first-core uranium inventory 首次堆芯铀装载量
the first core 首炉堆芯
First year Core required course 第一年必修课程
First through a low velocity core, and then through a high velocity shell, where their speed is increased before they are transmitted into the surrounding seawater.
它们首先通过一个低速的核心,然后通过一个高速的外壳,在它们被输送进周围的海水之前,它们的速度提高了。
First, this core focus directs attention to the correct item, which is affected by predictability of input pattern.
首先,该核心关注受到记忆输入模式可预见性的影响,将注意力转移到正确的信息上。
Let's tackle core technology first.
让我们先来解决核心的技术问题。
But first of all I wanna welcome you to the Inner Core and I want to say just by introduction how inspiring it has been to work with you over these last years since I've been here. You were part of the group that hired me and I thank you so much for that.
首先,我想欢迎您来到人性讲堂,我想说,仅仅为介绍之便,自从我来到普林斯顿大学以来,近年来跟您的合作是多么的激励人心,当初雇用我的小组里,您正是其中一员,非常感谢您。
So, no matter whether or not you write out the full form here, or the noble gas configuration where you write ne first or whatever the 3s1 corresponding noble gas is to the core electrons, we always write out the valence electrons here.
所以无论你是否,写出了完整形式,或者对应于价电子的惰性气体,再一次,我们可以写Ne然后,我们总是可以在这里写出价电子。
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