查询词典 ultrashort

On the basics of chapter three, a new scheme of photon acceleration by which the large amplitude nonlinear density perturbation excited by a finite length driving beam in plasmas is used to upshift the frequency of an ultrashort laser pulse.

第四章在第三章研究基础上，提出一种新的光子加速机制，即，利用有限长电子束激励的大振幅非线性等离子体电子密度扰动来对入射的光脉冲进行加速。

But the rehabilitation of pulmonary function of ultrashort wave was better than that of medication group.

结论∶超短波并药物治疗肺感染有较好的疗效，且利于肺功能的康复，其中超短波治疗对肺功能的康复起到了很重要的作用。

At the same time, with the rapid development of the ultrashort-laser-pulse technology, the focusable intensity of 10〓W/cm〓 can be realized on a compact table-top laser system, which can support the electric field that is much higher than that in H atom.

同时，随着超短超强激光技术的飞速发展，目前在小型化台式激光系统上，可聚焦功率密度已经达到了～10〓W/cm〓的量级，在这种功率密度下，激光场强度已经远远超过氢原子的内部库仑场强，激光与物质的相互作用已经进入极端非线性的领域。

The metallic nanoparticle-semiconductor composite thin films are considered as the only photoemissive material that can be used to detect the ultrashort laser pulses.

金属纳米粒子／半导体介质复合薄膜在近红外-可见-近紫外波段的选择性光吸收主要由金属纳米粒子体内导带电子的表面等离子激元共振吸收引起。

In this dissertation, some experimental and theoretical investigations on the interactions of ultrashort superintense laser pulses with rare gas clusters have been carried out.

团簇作为一种特殊的、气体到大块固体之间的过渡形态，对研究强激光与物质相互作用有重要的意义。

Ultrashort superintense laser pulse interactions with single atoms and solid targets have been the subject of extensive experimental and theoretical investigation over the last decade.

这种超快超强激光脉冲与物质在极限条件下的高度非线性相互作用研究引起了人们的极大兴趣。

For larger size clusters, a modified nanoplasma model was used to simulate the interaction processes of Ar, Kr and Xe clusters with ultrashort superintense laser pulses.

对于较大尺寸的团簇，采用改进的&微等离子体球&模型对相互作用过程进行了分析。

The LiF thermoluminescent detector arrays were used to measure the spatial distribution in 4π space of ejected hot electron and hard x-ray emission from ultrashort laser-solid target interaction for the first time.

首次使用LiF：热释光探测器阵列进行了超短脉冲激光与固体靶相互作用中发射的超热电子和硬X射线的全空间（4π立体角）分布测量。

The vasodilating effect of IV adenosine was immediate in onset and ultrashort in duration.

静脉应用腺苷的扩血管效应即刻产生且持续时间极短。

Remifentanil had a rapid onset and short duration of action, and probably showed signs of tolerance development, whereas the antinocieptive effect of adenosine was slow in onset and long-lasting, despite its ultrashort plasma half-life and the immediate on-off profiles of its vasodilating effect.

瑞太尼起效迅速且作用时间短，很可能显示了耐受性的发展，而腺苷的伤害感受效应起效缓慢且持续时间长，但血浆衰期极短，具有即刻开－关特性的扩血管效应。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。