查询词典 emission spectrum

The high bandwidth and large number of sub-carriers used for DVB-T and DVB-H allow for the reduction of several kilohertz of spectrum around DC without noticeably degrading performance.

高宽带和大量子载波频率的使用，使 DVB-T 和 DVB-H 在直流电中允许数千赫兹的缩减，而没有显著的不良表现。

The experimental results showed when acid concentration in serum sample was increased and hydrolysis time was prolonged that the bar graphs form of a spectrum were moved to small masses, on the contrary, to large masses. The most six peptides were got. Parts of possible component of amino acids into correspondence with mass numbers were kisted.

实验还表明增加血样的酸浓度及水解时间，血样的FDMS棒图则向小分子量方向移动，反之则向大质量数移动；最多测得六肽；对应所得到的质荷比值，列出了部分可能的氨基酸组成。

Each group was treated by intraperitoneal injection once every two days. The accumulation and metabolism of Al was analyzed by atomic absorption spectrum, expression of ED-1 by Kupffer cell was analyzed by immunohistochemistry.

采用原子吸收分光光度法测定铝元素在肝组织中含量的变化；免疫组织化学染色观察肝组织中枯否细胞的活化；RT-PCR检测凋亡相关基因Bax及Bcl-2 mRNA表达的改变。

Fourier infrared spectrum was used to differentiate raw lac, bleached las and lac mixed with resin.

利用傅里叶红外光谱分别对紫胶原胶、漂白紫胶、掺有松香的紫胶、接枝共聚紫胶进行了鉴别研究。

In the absence of planktivorous fish, large-bodied cladocerans effectively control the abundance of algae of a broad size spectrum.

当缺乏食浮游生物性鱼类时，大型枝角类有效地控制了较大范围的藻类丰度。

The article also use Matlab to simulate wind speed time-history from Davenport spectrum,use a long-span space lattice truss of some coal-fired power plant to make wind vibration analysis,which based on frequency and history method.

以Davenport脉动风速功率谱为目标谱，利用Matlab模拟出脉动风速时程，并以某电厂大跨度网架为例，分别在时域及频域内对其进行风振分析，并将上述两种方法进行比较，验证计算方法的可靠性。

The academic strengths of the Lab range across over a wide spectrum with two professors, four associate professors, six lectors, all of the staffs in the Lab have obtained Ph.

目前，IDC实验室已毕业博士研究生30余人，硕士研究生100余人，其中三人获得湖北省优秀博士学位论文，在读博士研究生20余名，硕士研究生80余名。

The dynamic structural analysis of the left-bank turn monolith of Longtan Hydropower Station with or without water intake scheme for small power set is researched by the response spectrum method based on the linear elastic 3D finite element method.

基于线弹性三维有限元法，采用振型分解反应谱法，对龙滩水电站左岸拐弯坝段设小机组进水口方案和取消小机组方案分别进行了动力计算分析，研究了该坝段的位移和应力分布规律。

This approach leverages the individual components in the MCDS solution to create, deploy, and deliver a wide spectrum of applications and content.

这种方法的个体组成的杠杆解音乐光碟制造、调配、交货广泛的应用和内容。

Based on the revised system,the vine life form spectrum analysis shows that the phanerophyte lianes are absolutely dominant,accounted for 72.7% of all vines,followed by the geocryptophyte vines(17.5%),the hemicryptophyte vines(6.2%),the therophyte vines(2.7%)and the chamaephyte vines(1.5%).

对本区生活型分析的结果表明，中国亚热带东部藤本植物的生活型谱是以高位芽藤本占绝对优势( 72 。7%)其次为地下芽藤本( 1 7.5%)、地面芽藤本( 6.2 %)、1年生藤本( 2 。7%)和地上芽藤本( 1 。5%)，除地下芽藤本比例略高外，与亚热带常绿阔叶林生活型谱十分接近，具有比较明确的生态学意义；地下芽藤本比例略高的原因可能是由于该类藤本具有地下贮藏器官，因此有利于次年春天迅速的抽生攀援枝，较其他草质藤本更优先占领光合空间，这是对区域小生境长期适应的结果。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！