针对运营时间超过50年的微型电子机械系统的基于物理放射性核种Ni- 63的电源。
Electrical power source based on radionuclide Ni-63 for micro-electro-mechanical systems with operation time in excess of 50 years.
首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。
First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.
舞毒蛾还会受到核多角体病毒或萎蔫病的攻击，在毛虫爆发的年代，这是一种特别重要的杀手。
The gypsy moth is also subject to attack by the nucleopolyhedrosis virus, or wilt disease, a particularly important killer of the caterpillars in outbreak years.
一旦合成，组蛋白就会进入细胞核，细胞核内的DNA片段会将组蛋白包裹起来，形成一种类似串珠或绳结的结构。
Once synthesized, the histones move into the cell nucleus, where a section of DNA wraps around them to form a structure that resembles beads, or knots, on a string.
另一种蛋白质与抗 laminB抗体反应，位于滋养核中。
The other protein reacts with anti-lamin B antibody and is situated in the macronucleus.
另一些观点包括制造一种检测器来试验原子核的旋转动量能否被测量出，或者运用该技术来制造超灵敏的触角。
Other ideas include building a detector to see if the spin of an atomic nucleus can be measured, or using the technique as an ultrasensitive antenna.
伽马射线爆有长时间的和短时间的两种，其中据信由超新星核的坍塌引起的长时间伽马射线爆是最常见的。
They come in two types, long and short, with the former the most common and thought to be caused by the core-collapse of a supernova.
硼是一种可以吸收中子的元素，中子是一种存在于所有的原子核中的亚原子粒子。
Boron is an element with the ability to absorb neutrons, the sub-atomic particles that occur in the nucleus of all atoms.
在德国和瑞士，销售精密机床的地方，阀门和许多其他核用品是一种国家骄傲的源头，出口执照通常被成批通过。
In Germany and Switzerland, where sales of precision machine tools, valves and much else of nuclear use were a source of national pride, export licences used to be waved through.
几乎就在五年前，美国国会削减了一种引起争议的掩体核弹——坚实型核钻地弹——的研究经费。
Almost five years ago, America's Congress cut research funding for a controversial bunker-busting nuke called the Robust Nuclear Earth Penetrator.
因为新增的细胞核不会死，它们便随时可以再造肌肉蛋白，使肌肉有了一种类似记忆的功能。
Since the extra nuclei don't die, they could be poised to make muscle proteins again, providing a type of muscle memory, he says.
但伊朗就巴西愿意担任伊朗储备的浓缩燃料的中立存储库的回应还是模糊不清的，虽然这作为一种有争议的尝试可以重启已陷入僵局的核谈判。
But Iran's response to Brazil's offer to serve as a neutral repository for Iran's stocks of enriched fuel as part of an attempt to revive a mooted solution to the nuclear stalemate has been vague.
在那些例子中，细胞核和细胞质融合在一起，杂交细胞制造出了表达两种动物遗传密码、完美运转的酶。
In those instances nuclei as well as cytoplasms came together and the hybrid cells made perfectly functioning enzymes that expressed the genetic code of two types of animal.
染色体是在细胞核中发现的，它是一种含有基因的线型结构，能够使不同人有不同特征。
Chromosomes, which are found in the nucleus of a cell, are thread-like structures that contain genes which determine the characteristics of an individual.
卷曲藻可能是一个菌落，或者一种真核生物——其包裹在细胞膜内的细胞功能已经出现分化的生物体。
Grypania may have been either a bacterial colony or a eukaryote - an organism with specialized cells, enclosed in a membrane.
从最通俗的角度讲，核反应实质上就是发生在原子核中的一种反应过程。
A nuclear reaction is at its most basic nothing more than a reaction process that occurs in an atomic nucleus.
一种组蛋白的八聚物把DNA打包成一种叫做核小体的结构。
An octa-mer of histones package DNA into a structure called a nucleosome.
随后该小组将一种RNA分子注射到老鼠大脑内参与情绪反应的杏仁核。
The team then injected an RNA molecule into the rats' amygdalas, the region of the brain involved in emotional responses.
迄今为止NASA研究了两种前往那里的备选推进器：核热火箭和化学发动机。
So far NASA is exploring two options for propulsion there? A nuclear thermal rocket and a chemical engine.
说实话，听到这个消息一种不详的预感便随之而来。不过经确认后，明白三核处理器并不是单独的一条生产线。
The first thing that comes to mind is bad yields, but I am told this is not the case for the three-core product lines.
重水因含重氢而得名。重氢是氢原子的一种，其原子核中含有一枚中子，加之正常氢元素中的质子，重量为一般氢原子的两倍。
Heavy water gets its name because it contains deuterium, a form of hydrogen that has a neutron in its nucleus as well as the usual proton and thus weighs twice as much as the ordinary sort.
赫斯博士构想出一个画面，即一道光正穿越于一个由两种材料制作的光导纤维，一种是具有正折射指数的纤维核，另一种则是具有正折射指数的外围。
Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
与之相反的是，近年来出现的通过将多个处理引擎或者“核”封装在一个芯片上的现象，又展现了另一种魅力。
Instead, extra oomph has been added in recent years by packaging multiple processing engines, or "cores", inside a single chip.
与之相反的是，近年来出现的通过将多个处理引擎或者“核”封装在一个芯片上的现象，又展现了另一种魅力。
Instead, extra oomph has been added in recent years by packaging multiple processing engines, or "cores", inside a single chip.
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