前体离子扫描是指监测前体离子的特定损失。
Precursor ion scanning refers to monitoring for a specific loss from the precursor ion.
在培养皿实验中，修饰后的分子与其前体一样有效。
When tested in Petri dishes, the new molecules were as good as their precursors.
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。
Finally, phagocyte precursors may undergo malignant transformation, which results in acute or chronic myelogenous leukemia.
你还可以用前体化合物让细胞通过生物转化的方式制造其他新的化合物。
You can also induce the cells by using compounds called precursors to produce other new compounds by way of biotransformation.
然后在凝胶上培育人体间质干细胞——骨骼、肌肉和其他组织类型的前体。
Then they grew human mesenchymal stem cells - the precursors of bone, muscle and many other tissue types - on the gels.
然后，T细胞的前体前往胸腺——一个位于胸骨下的小器官，在那里，它们被叫做早期胸腺祖细胞(ETPs)。
The T-cell precursors then go to the thymus, a small organ located under the breastbone, where they are called early thymic progenitors (ETPs).
从粉色到棕色的变化不仅帮助防止了晒伤，而且还让合适数量的阳光穿透皮肤从而把未激活的前体变成维生素d3。
The variation from pink to brown not only helps to prevent sunburn but also allows appropriate amounts of sunlight to penetrate the skin to create the vitamin D3 from its inactive precursors.
当一种叫淀粉样前体蛋白（APP）的分子被两种酶——分别叫作贝塔-分泌酶和伽玛-分泌酶——切断时就形成了淀粉样斑块。
Amyloid plaques form when a molecule called amyloid precursor protein (APP) is chopped up by two enzymes known as beta-secretase and gamma-secretase.
作为一个志愿者组织，国际业余卫星组织在当前立方体卫星热潮之前的几十年前就在将“业余”卫星送入轨道。
As an organization of volunteers, AMSAT was putting "amateur" satellites in orbit decades before the current CubeSat craze.
“亚洲是一体的”是《东洋的理想》一书的开篇第一句话，这本书出版于一个多世纪前，作者是日本的美术家冈仓天心。
“Asia is one” was the opening sentenceof a book published just over a century ago by a Japanese art historian calledKakuzo Okakura, entitled “Ideals of the East”.
罗德-爱丁顿爵士，前英国航空公司的老总，在2006年回顾英国的交通需求时表示，一个成熟的经济体很少会因为单个项目而获得巨大的收益。
Sir Rod Eddington, a former boss of British Airways, argued in a 2006 review of Britain’s transport needs that mature economies rarely see huge benefits from a single project.
就在6年前，空中客车工业公司从一个由欧洲飞机制造商组成的市场联盟，整合成为了一体化的公司。
Just over six years ago Airbus Industrie was transformed from a marketing consortium for a group of European aircraft-makers into an integrated company.
现在存在的所有Y染色体都来自于一个被认为生活在大约14万年前的同一祖先。
All Y chromosomes in existence today are descended from a single ancestor's who is thought to have lived about 140,000 years ago.
目的是要在明显的临床体症出现前查出癌症。
The goal is to detect cancer before clinical signs are noticeable.
当人们想象未来的事件时，前额叶皮层，前扣带皮质和海马体之间，有一个复杂的的“功能耦合" 。
When people imagined future events, there was an intricate "functional coupling" between parts of the prefrontal cortex, the anterior cingulate cortex and the hippocampus.
1910年前，他在四面体风筝方面的研究，导致了这艘飞行器的开发。
His work with tetrahedral kites led to the development of this flying machine a few years before 1910.
到2012年，世界前20个市场中有九个将成为新兴的经济体。
By 2012, nine of the top 20 markets will be emerging economies.
令人惊讶的是，他们发现曾是蒙古帝国疆域，每12个人中就有一人携带追溯到千年前的蒙古基因的Y染色体。
To their astonishment, they found that one out of every twelve Asian men in regions once part of the Mongol empire carry a form of the Y chromosome that can be traced to Mongolia a thousand years ago.
在不久前发生的这场危机前及危机期间，几个拉美和亚洲经济体开始实施浮动汇率制，而中国却令人瞩目地未采取这一做法。
Before and during the recent crisis, several Latin American and Asian economies — with the notable exception of China — let currencies move.
渣打银行统计，在亚洲11个大经济体中GDP加权通胀率由一年前的3.5%上升至本年四月的6.8%。
Standard Chartered calculates that the GDP-weighted inflation rate for 11 big Asian economies was 6.8% in April, up from 3.5% a year ago.
欧元区最大的经济体德国下滑的尤为严重：其GDP在三月之前的三个月里下降了3.8%，而从一年前的衰退到现在，GDP暴跌了近7%。
Germany, the largest economy in the group, fell even harder: its GDP shrank by 3.8% in the three months to March and has plunged by almost 7% since its recession began a year ago.
结果和他们的预期一致：感情丰富的图片能在视觉皮层被激发前刺激杏仁体部分的反应。
And results were in line with their prediction: the emotional pics activated the amygdala well before part of the visual cortex.
在欧元区的诞生的前10年里，其最大的经济体德国停滞不前，但是经过长期的薪酬限制之后其出口产业开始提升经济。
For much of the euro zone's first decade Germany, its largest economy, was in the doldrums, but after a long period of wage restraint its export industries started to lift the economy.
一组新发现的21亿年前的古老有机体化石可能是地球上已知最早的复杂生命体。
A newly discovered group of 2.1-billion-year-old fossil organisms may be the earliest known example of complex life on Earth.
无论卷曲藻属于何种类型，它是在5.5亿年前出现的化石记录大爆炸之前已知仅有的几类复杂生命体的案例。
Whatever Grypania was, it was one of the few known examples of complex life until about 550 million years ago, when the fossil record explodes in diversity.
无论卷曲藻属于何种类型，它是在5.5亿年前出现的化石记录大爆炸之前已知仅有的几类复杂生命体的案例。
Whatever Grypania was, it was one of the few known examples of complex life until about 550 million years ago, when the fossil record explodes in diversity.
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