查询词典 mev

Inelastic neutron scattering spectra of YBa2Cu3O(6+δ) sample with several different oxygen contents δ have been obtained in the energy range from 10 to 150 meV at a new wide angle (~30°) Be-filter detecter spectrometer, CIAE,Beijing.

在中国原子能科学研究院新建的宽角(～30°)Be过滤探测器中子非弹性散射谱仪上，在入射中子能量从10直至150meV的范围内，测量了几种不同氧含量的YBa_2Cu_3O_(6+δ)样品的中子非弹性散射能谱。

For a high laser intensity and small spot size, an electron may escape from the laser and can retain energy gain.We obtain analytical expresses of electron instantaneous momentum. Taking the plane wave of Gaussian laser for an example, we derive electron distribution function over instantaneous values of electron momentum and energy.

本文考虑电子初始温度不高(约100eV)以及脉冲长度很短(约4-6个激光波长)时，也能得到两群高能电子群；在脉冲长度极短(仅有2-3个激光波长)和电子初始温度不太高的情况下，就有明显的三群高能电子群出现，且如果激光功率密度大于5×10~(18)wcm~(-2)时，高能电子的温度也达到MeV。

There may be some extremly narrow resonances with massless than 2.6 Gev and width less than 0.1 MeV.

在质量小于2.6GeV的区域可能出现宽度不足0.1MeV的极窄共振。

The features and the formation mechanism of the individual damage induced by the energetic ions with a wide energy range from MeV to GeV were studied systematically.

在广阔的能区内系统地研究了荷能离子轰击固态材料形成孤立损伤的形态及其形成机理。

The method comprises:(1) weighing lead acetate hexahydrate and thioacetamide, and preparing aqueous solutions respectively, so that the concentration ratio of Pd2+ to S is 1:(1-4);(2) adding acetic acid into thioacetamide solution to adjust the pH value to 2-4;(3) adding poly surfactant into lead acetate solution, ultrasonicating to mix uniformly and obtain a colorless and transparent sol;(4) mixing the sol and thioacetamide solution;(5) placing the mixed solution in a sealed container, irradiating by 2.5 MeV and 40 mA electron accelerator with irradiation dose of 25-40 Mrad;(6) washing the product, centrifuging for separation, and drying to obtain black PdS nanoparticles.

本发明方法的工艺过程如下：首先称取一定量的六水合醋酸铅和硫代乙酰胺，各自配制成水溶液，其浓度比为使其中的铅离子浓度与硫原子浓度的比例为1∶1～1∶4；在硫代乙酰胺溶液中加入适量醋酸调节其pH值至2～4；醋酸铅溶液中加入少量表面活性剂聚乙烯醇，然后超声振荡，混合均匀，制成无色透明溶胶；随后将溶胶与上述的硫代乙酰胺溶液混合；将该混合液置于密闭容器中，并将其放置于2.5MeV、40mA的电子加速器产生的电子束辐照下进行辐照处理，其辐照剂量为25～40Mrad；然后将反应生成物清洗，并用高速离心机离心分离，然后干燥，最终得到黑色纳米硫化铅颗粒。

of growth temperature, accompanied by a slight linewidth variation from 71 to 74 meV as the temperature varies from to .

几乎不随长晶温度改变，而光谱的半高宽随著温度的上升也只有些微的从？

Crops of Brassica napus L., Linum usitatissmum L., Allium fistulosum L. and Lens culinaris Medic. were irradiated by 80 MeV/u 12C(superscript 6+) ion beams with doses of 30, 90 and 180 Gy. The germination rates and heights of seedlings of M1 and M2 generation of these four plants were studied.

以能量为80MeV/u的12C(上标 6+)离子为诱变源辐照油菜、胡麻、大葱和兵豆的干种子后，研究了不同剂量处理对4种农作物M1和M2代种子出苗率及幼苗生长的影响。

We have designed a 5 Mev electron linear accelerator for the industry.

我们设计了一台5兆电子伏工业用电子直线加速器。

It has been applied to radiation monitoring system of 4 MeV electrostatic accelerator in my school at present.

目前其已应用到我校4兆伏静电加速器的核辐射监测系统中。

Based on the principle of Monte Carlo simulation of photon transport, the transport processes of 2 MeV and 9 MeV bremsstrahlung in Nal, Csl and CdWO4 scintillators have been simulated.

通过Monte Carlo模拟光子输运过程的理论，对韧致辐射光子在Nal、Csl、cdw氏闪烁体内的输运过程进行了描述。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。