查询词典 bombardment

The cause of the American Civil War was the bombardment of Fort Sumter.

A 一位称职的教师必须行为端正，知识渊博。

Transient assay by bombardment of onion epidermal cells and by PEG mediated gene transter to rice protoplast showed that OsSPX::GFP fusion proteins are located at different subcellular partitions, implying the different functional mechanisms for different family members.

此外，洋葱表皮和水稻原生质体的瞬间表达分析发现，不同的OsSPX与GFP的融合蛋白定位于不同的亚细胞部分，预示着不同的水稻SPX家族成员有不同的作用机制。

While the phases with complex structures such as the interstitial phase of trigonal prism, could be obtained under some certain conditions of ion beam bombardment.

而复杂结构的相，如三棱柱间隙相，只有在特定的载能离子轰击条件下才能得到。

In this thesis, we simulate the ion bombardment to the field-emission cathode in a triode by developing a method similar to Sigmund Model.

本文利用Sigmund模型发展了一种类似的方法用来模拟场发射三极管中离子轰击的情况。

Air bombardment may cause serious damage, but may not be enough to stop Iran's nuclear programme or unseat its clerical regime.

空军轰炸可能造成严重破坏，但却不足以阻止伊朗的核计划或者推翻这个政教合一的政权。

Methods The genomic DNA from Ephedra glauca was randomly transferred in Saccharomyces cerevisiae and Hansenula anomala,respectively by nitrogen ion bombardment.The recombined yeasts were screened and the content of ephedrine in ecto-and endo-recombined yeasts was determined by the methods of bromothymol blue indicator selection,slant cultivation,liquid culture,copper chromic salt qualitative test,and RP-HPLC determination.

方法通过N 注入介导蓝麻黄基因组DNA分别在酿酒酵母Saccharomyces cerevisiae和异常汉逊酵母Hansenula anomala中随机转化，转化后的酵母菌经BTB指示性辅助筛选、斜面传代和液体培养后，用铜铬盐定性检识和RP-HPLC方法，检测重组酵母菌胞外和胞内麻黄碱的量。

The chromone was finally identified as cinnamoyl-C-glycoside chromone by ultraviolet, fast atom bombardment mass spectrometry, nuclear magnetic resonance (1H NMR and 13C NMR).

经过紫外检测、快原子轰击质谱及核磁共振等方法的结构分析鉴定，证实分离所得物质为肉桂酰基-C-葡萄糖甙芦荟色酮。

By comparison between SMM HXRBS observation and ground observation of Hα and CaIIK lines, especially through the combined study between SMM HXRBS observation and chromospheric flare models, the results show that: in the initial stage of impulsive phase, there is a correlative relation betweem Hα line intensity and hard X-ray emission; different spike in hard X-ray flux curve represents the burst at different location; the energy taken by non-thermal electron beam is larger than the radiative loss in chromosphere; for the flare studied here, the chromospheric evapporation is explosive; if the chromosphere is in balance between electron beam bombardment and radiative loss, the column mass density at the top of chromospheric flare model can not be taken as measure from the source of electrons and then the total material between the source of electrons and the top of chromosphere can be estimated.

通过一个具体耀斑的SMM HXRBS观测结果与同时基于地面得到的Hα和CaⅡK可见光谱观测结果对比，特别是将硬x谱观测结果与色球半经验模型联立研究，结果显示出：在脉冲相上升段，硬x发射与Hα辐射之间存在对应关系；硬x线光变曲线中不同脉冲爆发分量不太可能起源于同一位置；硬x辐射所反映的高能非热电子总携带能量大于色球总辐射损失；对所研究的耀斑而言，其色球蒸发过程是爆发性的；在详细比较了非热电子色球总沉积和色球辐射损失的基础上，指出半经验模型中色球顶部柱数密度不能看成是从非热电子源度量的，从而估计了色球顶部到非热电子源之间的总物质。

Negative Fast Atom Bombardment and Collisional Activation Mass Spectrometry in the Structural Analysis of Oligoglycosides

负离子快原子轰击及其碰撞活化质谱法在寡糖苷结构分析中的应用

In the case of both the Moon and Mars, it is generally concluded from the appearance of their heavily cratered surfaces that they have been subjected to bombardment by large meteoroids during their geological history.

说到月球和火星，对他们满是弹坑的表面通常的结论是他们的地质历史中遭受了大陨石的撞击。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。