查询词典 half-value period

In addition, since the back electromotive force occurring in an inductance element is cleared to zero during a half wavelength of period of the cosine wave, speed electromotive force can be measured by immediate shifting from a setting period to a measuring period.

另外，由于在余弦波的周期的半波长期间，使在电感元件中产生的反电动势VL清零，通过立即从设置周期转移到测量周期，能测量速率电动势。

The first half of the chapter begins with the introduction of three common viewpoints over the two kinds of theories, followed by deep investigation and description of some biased nature in them, then comes up with the conclusion that we must draw a clear distinction between what was said by Marx himself and what has long been accepted as dogmatical statements. The later half of chapter introduces various understandings to the theory of three social orders evoked by the discussion of economic social formation, points out the drawbacks of and the author"s disproval to the idea that economic social formation only exists in a definite historical period. This chapter is to deepen the understanding of Marx" theory of three social orders through the discussion of the other two important theories related to it.

首先介绍了迄今为止在"三形态说"和"五形态说"的讨论中出现的三种基本观点，并分别对这些观点加以反思，通过反思指出了这几种观点中存在的一些偏颇之处，提出了在讨论三大社会形态理论和五种社会形态理论的相互关系时要对马克思本人的"五形态说"和传统的教条化的"五形态说"加以明确的区分；接着介绍了在讨论"经济的社会形态"这一范畴时所引发的对三大社会形态理论的不同理解，指出了把"经济的社会形态"理解为一种特定历史阶段的社会形态类型所产生的问题，反对把"经济的社会形态"理解为一种特定历史阶段的社会形态类型。

Goals are proportion in the first half and the second half. Goals flood tide appear in the first 15 minutes of first half and second half, and the amount of goal reduce more and more as the time goes by during the other period of time. The main districts of goal are 1 section and 2 section. Besides, the big forbidden zone spread to 30M line section also become the main district of goal. The most important means of offense is tactics of placement, the ball past from side to the middle and offense of middle pass are also the important means of goals. Most of the goals are done by vanguard player, the aggressive plug into of vanguard has become the important means of goal in each team.

上下半时进球比较均衡，除了在上下半时开始的15min这两个时段出现进球高峰外，其余时段的进球数量随着时间的推移呈现递减趋势；进球主要区域是在1区以及2区，罚球区外到30m线区域也成为本届世界杯淘汰赛阶段射门进球的重要区域；由定位球战术发动进攻为进球主要进攻方式，边路传中以及中路传切进攻仍是比赛进球的重要方式；进攻方式以抢点直接射门为主；进球数最多的是前卫队员，前卫队员的攻击性插上进攻已成为各队进球的重要手段。

In the half-bred period of primary community, there was no family.

它不断维持着最直接的人类社会的延续性，并形成家族体系。

Jevons, who further observed that "among other meteorological cycles, there exists a three-and-one-half-year period in solar radiation and barometric pressure," which might help to explain the shorter-term business cycle.

Jevons的研究。他进一步观察："在其它气象周期中，有一个三年半的太阳辐射和大气压的周期"，着也许有助于解释短期的商业周期。

The experimental results showed that the aquation of JM216 follows the pseudo-first-order- rate law, of which the observed-rate constant kobs is 5.0×1.0-6min-1and the half life period t1/2 is 96.25 days at 37℃.

结果表明，JM216的水合反应为准一级反应，反应对JM216为一级，37°C时水合反应表观速率常数为kobs=5.0×10-6min-1，半衰期t1/2＝96.25天。

Short treatments (15–35 min after fertilization — about half the period of meiosis 1 in triploid eggs).yielded tetraploid and heptaploid cells.

因此，本试验试图利用Guo和Allen的方法对四倍体诱导中的一些基本条件进行优化。

She married life long, so be called"the virgin queen"/"the virginity queen".was placed in inner part england because of religious partite confusion appearance when she ascend the throne, but she kept not only and successfully england of unify, and at through the near half for century of governance after, make to become europe england the most strong, be rich with of one of the nation.england the culture also comes to an a peak in this period, flowing out to appear such as the shakespeare, the bacon is such well-known person.england's colony in north america also starts establish in this period.her governance expects in the top of the british history to be called" lisa the white is period", also being called"golden age"..

她终身未嫁，因此被称为&处女女王&/&童贞女王&。她即位时英格兰处于内部因宗教分裂的混乱状态，但她不但成功地保持了英格兰的统一，而且在经过近半个世纪的统治后，使英格兰成为欧洲最强大，富有的国家之一。英格兰文化也在此期间达到了一个顶峰，涌现出了诸如莎士比亚，培根这样的着名人物。英国在北美的殖民地亦在此期间开始确立。她的统治期在英国历史上被称为&伊丽莎白时期&，亦称为&黄金时代&。。

Shou first, outstanding achievement of partial medium company is good, carry brace up medium board piece the person is angry, xin country installs the half annual report that (000839) issues to show in, the company realizes business income first half of the year 1.128 billion yuan, relatively go up growth of year of the corresponding period 27.31%; Net profit 137 million yuan, relatively go up growth of year of the corresponding period 44.20%.

首先，部分传媒公司业绩良好，提振了传媒板块的人气，中信国安(000839)发布的半年报显示，公司上半年实现营业收入11.28亿元，较上年同期增长27.31%；净利润1.37亿元，较上年同期增长44.20%。

An image display apparatus includes a display having data holding function, a vertical drive circuit sequentially and selectively scanning matrix form display elements, and a horizontal drive circuit writing a voltage among binary voltage preliminarily assigned depending upon the digital data of the image signal. The horizontal drive circuit and the vertical drive circuit are operated for performing selective scan of respective display element for at least m times in one frame period. The vertical drive circuit is constituted of n number of sequence circuits and logic operation circuits for outputs of the sequence circuits, where n is smaller than m, a period from inputting to the sequence circuit to outputting from the final stage being less than or equal to half of one frame period, and at least one of the sequence circuits being used with selectively inputting a plurality of inputs.

提供了一种图象显示器，其具有显示部，在矩阵上排列的象素内保有数据保持的功能，根据保持的数据进行显示；垂直驱动电路，对构成显示部的矩阵状显示器以每行按顺序作选择性扫描；以及水平驱动电路，对于由垂直驱动电路选择的行显示器件，根据应显示的图象信号数字数据，从预先分配的二进制电压中写入电压，并利用水平、垂直驱动电路，与应显示的图象信号同步，在1帧期间至少m次对各显示象素进行选择性操作，以此进行多色调显示，垂直驱动电路由满足n＜m的n个顺序电路和其输出的逻辑运算电路组成，顺序电路的输入从最后级输出为止的期间为1帧期间的1/2以下，并且，n个顺序电路的至少一个的输入是切换多个输入系统而使用。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。