This article is related to a calculating method of atomic ionization cross section on K - shell when bombarding a nuclear target with electron.
介绍了利用电子轰击核靶原子K壳层电离截面的一种计算方法。
Gradually other nuclear powers realized that the only target in America was Washington. The more astute saw the writing on the wall and slipped away from the former capital city.
其他核国家逐渐认识到，他们在美国的唯一目标是华盛顿，预见到危险前景的人们开始逃离这座曾经的首都。
The target may have been the centrifuges at its nuclear refinery at Natanz.
其目标可能是位于纳坦兹核精炼厂的离心器。
That could be a coincidence. But if Stuxnet was aimed at Iran, one possible target is the Bushehr nuclear reactor.
这有可能是巧合，但如果Stuxnet针对的是伊朗，攻击目标则有可能是位于布什尔的核反应堆。
The Stuxnet outbreak has been concentrated in Iran, which suggests that a nuclear facility in that country was the intended target.
Stuxnet蠕虫的爆发集中在伊朗，这表明伊朗的某个核设施是蓄意的目标。
The unmanned space vehicle — inspired by nuclear pulse propulsion studies by the British Interplanetary Society in the 1970s — will ideally reach its target star within 100 years after launch.
这艘无人航天器——灵感来源于20世纪70年代英国星际学会研究的核脉冲推进——理论上讲在发射后100年内抵达其目标恒星。
Huge investment is needed to replace old coal and nuclear plants that will be closing soon, and to meet a target of generating a third of the country's electricity from renewables by 2020.
我们需要大量的资金投入来使那些即将关闭的老旧的煤炭，核力发电站重新运行，实现到2020年发电量占全国发电量的1/3的目标。
Japan's status as the only target of nuclear attack, in Hiroshima and Nagasaki in 1945, adds to the public's sensitivity.
1945年在广岛和长崎，日本作为唯一遭受核弹攻击的国家这一状况，更增添了公众对于核的敏感。
There's also the geographic factor: These countries are very close to one another; a nuclear-armed missile's flight time, from launcher to target, is a few minutes.
另外还有地理因素：这些国家彼此都非常接近，从发射到目标，一个带核弹头的导弹的飞行时间只要几分钟。
Obama has dedicated himself to a world free of nuclear weapons, but that remains a theoretical target.
奥巴马曾说将致力于创造一个无核化的世界，但是这一构想也仅仅停留在理论阶段。
Nuclear safety is the most critical target for nuclear power plant operation.
核安全是核电站运行的关键目标。
However, the predominant process of secondary ion sputtering is kinetic sputtering, which closely related to the momentum deposition on the target surface (nuclear stopping power).
而主导二次离子溅射的过程是动能溅射，它与靶表面的动量沉积(核能损)过程密切相关。
The classical mechanism for nuclear receptors to regulate gene expression is to bind the hormone response element(HRE) on the target gene in the presence of their ligands.
核受体家族的经典作用机制是在其配基存在下结合在靶基因的应答元件上，从而在转录水平上调节基因的表达。
The structure and performance of a three-dimension movable target holder used in nuclear reaction experiments are described.
描述了遥控三维调变的核反应靶架及其控制器的结构与性能。
Birol also said that the world's reliance on fossil fuel power stations and the scaling back of nuclear power make it less likely for the world to meet its greenhouse gas target.
比罗尔还表示，世界各国依赖矿物燃料发电厂、取缔核电的行为使得控制温室气体的目标更不可能得以实现。
The two sides had decided not to target each other with the strategic nuclear weapons under their respective control.
双方抉择，不把各自节制下的计谋核刀兵瞄准对方。
The resonance tunneling via lattice-confined ion is quite different from that of beam-target nuclear reaction.
由晶格内束缚态离子引起的共振隧穿现象将完全不同于低能下束一靶相互作用引发的核反应现象。
Nuclear receptors (NRs) are ligand-activated transcription factors that regulate the activation of a variety of important target genes.
核受体是配体活化的转录因子，能调控大量的靶基因。
After activation by ligand as is the case with nuclear receptors, PPARs binds to a specific element in the promoter region of target genes.
这些核激素受体由其配体(激活物)激活后，通过偶联特异的反应元件来调控多种靶基因的表达。
Without nuclear power, the report said, Germany could forget about its target of reducing CO2 emissions by 80 percent in 2050 from 1990 levels.
没有核电，报告说，德国可以不再想以1990年排放水平的在2050年减少百分之八十二氧化碳排放量的目标。
Without nuclear power, the report said, Germany could forget about its target of reducing CO2 emissions by 80 percent in 2050 from 1990 levels.
没有核电，报告说，德国可以不再想以1990年排放水平的在2050年减少百分之八十二氧化碳排放量的目标。
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