| 释义 |
precursors 英priː'kɜːsəz美priː'kɜːsəz COCA²⁷⁵⁹⁸BNC²⁰⁷⁴⁷Economist²⁴¹⁰⁶⁺⁶
基本英英例句Thesaurus例句
前驱体¹⁰⁰原型precursor的复数
名词 precursor:
a substance from which another substance is formed especially by a metabolic reactiona person who goes before or announces the coming of anothersomething that precedes and indicates the approach of something or someoneRare earth luminescence materials of alkaline earth stannates have also been prepared via thermal decomposition of hydroxo stannateprecursors.利用某些新型带羟基的碱土锡酸盐作为前驱体，固相反应合成掺稀土的锡酸盐发光材料。
The two cyclopentadienyl groups in metallocence compexes can be linked by one or two bridging groups to form ansa-metallocence catalystprecursors.摘要茂金属化合物中两个茂环可以通过一个或两个桥基相连接，形成各种桥联茂金属催化剂前驱体。noun.something that indicates outcome or event beforehand
同义词 forerunner,harbingerherald,messenger,outrider,usher,vanguardnoun.something that precedes another
同义词 forerunner,prototypepredecessor,antecedent,parent,forebear,pioneer,originator,ancestor,originalantecessor,foregoer As chemical precursors stream onto the surface of a rolling metal or plastic substrate, they react with one another to form a network of nanoparticles.
各化学母质流向滚动中的金属或塑料基片的表面，他们互相作用，形成一层纳米级微粒网状结构。 yeeyan
The precursors of cancer-causing compounds can also be reduced by microwaving the meat for a few minutes and pouring off the juices before cooking it on the grill.
在烧烤之前可以通过微波加热几分钟，浇注上果汁，可减少致癌化合物的前体。 yeeyan
But the release of NPY can stimulate the reproduction of cells that are precursors to fat cells.
但是 NPY的释放可以刺激那些可以变成脂肪的细胞，促进他们的产生。 yeeyan
But this study is the first to experimentally show that optical precursors exist at the single- photon level, and that they are the fastest part of the single- photon wave packet.
而这次的研究则是第一次用实验证明，在单个光子层次上也存在着光前驱，而且它们也是单个光子的波包中最快的部分。 yeeyan
Despite years of searching for earthquake precursors, there is currently no method to reliably predict the time of a future earthquake.
虽然对地震前兆的研究已有多年，但至今仍没有办法能够可靠的预计到未来地震发生的时间。 yeeyan
Even more infuriating for the previous government, which provided the precursors for progress but got no credit for it, he is often right.
更令前政府愤怒的是，作为先驱者颇有功劳却没得到好评，卢拉总是自以为是。 ecocn
Even so, researchers press on doggedly with the search for tell-tale “ precursors” which could warn us of impending “ Big Ones”.
尽管如此，研究者们仍固执地寻找那些可能帮我们预测大地震的种种“前兆”。 yeeyan
Finally, phagocyte precursors may undergo malignant transformation, which results in acute or chronic myelogenous leukemia.
到最后，吞噬细胞前体可能发生恶变，导致急性或慢性骨髓性白血病。 yeeyan
For our evolutionary precursors out in the wild, the fight- or- flight response was a valuable survival mechanism.
对于那些处于野外进化中的祖先来说，逃跑或战斗响应是一个宝贵的生存机制。 bbs.chinadaily.com.cn
He assumes that the necessary precursors just aren’t there, and I agree with that: the precursors aren’t there, but that would only be a problem if progress were linear, and it’s not.
他推测人类届时不可能会创造出如此强大的处理器来，如果人类文明呈线性发展，那我同意他的看法，但事实并不是如此。 yeeyan
I think you can see why Areopagitica has been memorialized for centuries now as one of the central precursors, well, to a number of things.
我认为你能看到《论出版自由》作为最主要的先驱,流传和纪念百年是有很多原因的。163
It's not clear when the onset is so I study pre-school age children with the intent of trying to identify behavioral and emotional precursors that will later evolve into chronic depression.
正是因为不清楚抑郁的始发时间，我才研究学前幼儿，希望能够从他们身上找出行为和情感上的先兆，这些先兆日后可能发展成慢性抑郁。 yeeyan
Pap smears work by detecting abnormal cells that are cancer precursors and that can be destroyed using techniques like lasers and cryotherapy or, rarely, surgery.
巴氏涂片可以检测出那些异常细胞，它们是癌症的前兆，然后通过一些技术手段，如激光，冷冻疗法，或着难得也用外科手术来杀灭这些细胞。 yeeyan
Rough estimates suggest that any useful quake forecast method demands precursors that will prove correct98 per cent of the time.
粗略的计算显示，任何有价值的地震预测手段，其观测的地震前兆的准确率必须达到98%以上。 yeeyan
So what are today’s precursors?
那么今天的预兆是什么呢？ ecocn
So what are today's precursors? I think there's just one: the ubiquitous web.
那么今天的预兆是什么呢？我认为只有一个：无所不在的互联网。 ecocn
The current constitution was first enacted in1971 and amended several times in the years afterward, but its precursors date back to a century before.
目前的宪法是最初在1971年采用的，之后经过几次修改。但它的初期形式可以追溯到一个世纪以前。 yeeyan
The Organovo machine uses stem cells extracted from adult bone marrow and fat as the precursors.
欧加南墨的机器，采用从人体骨随萃取出来的干细胞以及脂肪，做为前驱细胞。 ecocn
The atoms had an effect called electromagnetically induced transparency EIT, which enabled the scientists to separate the single- photon precursors from the main wave packet.
这些铷原子可以产生一种称为“电磁感应光透明” EIT的效应，可以帮助科学家从主波包中分离出单个光子前驱。 yeeyan
There's a way to actually grind down and prepare the flour, so that you promote the enzymes within the plant to breakdown the cyanide precursors.
有一种方法是将它们磨碎，做成粉，这样就可以促进它们本身带有,酶将氰化物的前驱体分解掉。163
This very low base- rate means that any precursors of a quake would have to be incredibly reliable if decision-makers are to feel safe in using them to order mass evacuations.
这么低的基础概率意味着，如果要让决策者下定决心，进行大规模人口疏散的话，任何地震前兆都必须极其可靠。 yeeyan
When tested in Petri dishes, the new molecules were as good as their precursors.
在培养皿实验中，修饰后的分子与其前体一样有效。 ecocn |