查询词典 emission spectrum

These indicate The extracts of different parts of Kandelia candel all show broad-spectrum antibacterial activity. The antibacterial activity in vitro of B fraction of stem aqueous extracts was the strongest among all the extracts.

实验显示，秋茄不同部位提取物均呈现广谱的抗菌活性，其中以枝水提取物B部位对10种菌株的体外抗菌活性最强。

One of the most common ways to describe a wood's tonal properties is in terms of its frequency range,which is often broken down into low-end frequencies,mid-range and high-end frequencies.picture it as a visual spectrum,as we've done in the chart to the right,with the lower frequencies on the left and the higher frequen-cies on the right.the graph line for each wood visually depicts its general tonal range.rosewood and ovang kol,for example,tend to resonate with more low-end frequencies,whereas koa,cocobolo and maple tend to sound brighter from having more top-end frequencies.note also rosewood's"scooped"midrange and ovang-kol's fuller midrange.the doted lines for walnut and koa denote the expansion of low-end frequency range as the guitar opens up after a period of playing it.

最常见的方式描述了木材的声音特性是在其频率范围内，这往往是细分为低端频率，中端和高端frequencies.picture它作为一个视觉频谱，因为我们'维生素E这样做的图表，以权，以较低的频率在左边和更高的频率，种上right.the图线的每一个木材视觉描绘的一般音调range.rosewood和ovang科尔举例来说，往往会产生共鸣更多的低端频率，而兴亚， cocobolo和枫树往往从健全光明有更多的高端frequencies.note也花梨木的&收购&的中端和ovang -科尔的充分midrange.the doted线的核桃和兴亚指扩大低端频率范围内的吉他开辟了一段时间后，打它。

The preliminary results show that the peak of HSiO〓 with the baseline width of about 4ppm in 〓Si-NMR spectrum is getting narrower, which shows that the regularity of the ladderlike polymer is further improved.

初步结果发现〓Si-NMR谱中代表梯形主链上Si原子峰的基线宽度降低到4ppm，表明梯形聚氢基倍半硅氧烷的规整性有进一步提高。

In this dissertation, the chemical constituents of the red algae Laurencia cartilaginea and Laurencia majuscula collected from the South China Sea of the Xisha Islands were studied, and 12 compounds were isolated by combination of extraction and separation and identified by various kinds of spectrum.

本论文主要采用硅胶柱层析、RPC—18反相柱、Sephdex LH—20、薄层层析及重结晶等方法，对采自中国南海西沙群岛的软骨凹顶藻Laurencia cartilaginea和略大凹顶藻Laurencia majuscula的化学成分进行研究，共得到12种化合物，并运用各种波谱手段对得到的化合物进行了结构鉴定。

In his later years Lenard studied the nature and origin of the lines of the spectrum.

后期，莱纳德又研究了光谱线的本质，发展了里德伯、海因里希·凯泽和卡尔·伦格的研究成果，他们提出金属的光谱线可以分为两类或更多类连续光谱，并且这些谱系的波长之间存在明显的数学关系。

In addition the images of some of the lensed galaxies appear red — the large distance to these galaxies introduce redshift, which shifts their light to the red part of the spectrum.

此外，该图像部分的透镜星系出现红色-大的距离，这些星系的红移介绍，轮班其光红色部分频谱。

Based on the theorems of holography and linear system,the numerical reconstructing methods of the off-axis lensless Fourier transform hologram by Fresnel diffraction formula and by the convolution method based on Rayleigh-Sommerfeld diffraction integral and by angular spectrum theorem are studied.

根据全息理论和线性系统理论，采用离轴无透镜傅里叶变换全息记录光路，对利用菲涅耳近似法、基于瑞利—索末菲衍射积分的卷积法以及角谱理论方法数值重建全息图进行了比较研究，并做了计算机模拟验证。

It is a fungus parasitic on the larvae of Lepidopteral . A broad spectrum of its pharmacological functions in hepatic function, renal function, cardiovascular function, immunomodulation, endocrine and steroid system, nervous system, and anticancer activity has been reported.

许多研究报告指出其药理作用的范围，包括了肝、肾、心血管功能，并可影响神经及内分泌系统，且对於免疫力的调控及抑制癌症有相当的功效；其中认为最值得探讨的就是调控免疫系统以对抗癌症发生的能力。

Objective］The purpose of this research was to analyze on Raman spectrum of linoleic acid.

［目的］分析亚油酸的拉曼光谱效应。

The purpose of this research was to analyze on Raman spectrum of linoleic acid.

［目的］分析亚油酸的拉曼光谱效应。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。