查询词典 frequence

Absolute frequency , frequence , oftenness , relative frequency

绝对频率，绝对频率可听声频率，音频，成声频率

①Location of WD gene in Ch inese: Using pairwise linkage analysis and multipoint linkage analysis method, w e constructed a genetic map of DNA markers within D13q14.2-3 which refined the location of WD gene by restriction fragment length polymorphism and microsatellite polymorphism analysis;②Screen for mutations of WD gene in Chinese people: we detected the structure of 21 exons of WD ge ne in 45 patients from 39 pedigrees by PCR-SSCP(Single strand conformation poly morphism) and PCR-DNA sequencing technology, found a new mutation in exon 5 and nuclcotide sequence analysis showed it is a T insertion. We also conformed the Arg778Leu in exon 8, the highest frequence mutation point in Chinese people, wit h mutation rate 22.8%in total;③Carrier detection and presymptomatic diagnosi s of WD: Based on DNA recombination technology, we peformed successfully the gen e diagnosis in all individuals of 79 families with WD and built up a helpful spe cific enzyme cut method (PCR-Msp1) to detect the carrier and presympomatic patients in Chinese pe ople with WD.

①WD的基因定位研究：通过RFLP及微卫星多态性分析，应用两位点及多位点连锁软件，建立了中国人WD基因在D13q14.2-3区域的精细遗传连锁图谱，从而首次对中国人WD基因进行了精确定位；②WD基因突变研究：应用PCR-SSCP及DNA测序技术，对39个家系45名WD患者进行该致病基因的21个外显子突变筛选，发现WD基因5号外显子存在新的T插入突变，并证实中国人WD基因的突变热点为8号外显子，突变形式为Arg778Leu，其频率为22.8%；③WD的症状前诊断和杂合子检出：应用DNA重组技术对79个家系进行基因诊断，成功地进行了WD的症状前诊断和杂合子检出，并建立了WD的基因筛选的PCR-Msp 1酶切方法。

A analytical expression of spectral bandwidth is obtained through retaining term of first order(when expanding circular frequence of wave vector in Taylor series).

利用该解析式，采用数值计算的方法，分别研究了带宽随信号光波长、抽运光波长和非共线角的变化规律。

Additionally, it has also been proved that the bifurcation problem with respect to frequence possesses infinite codimension. Therefore the dynamical bifurcation behavior is very complex in this case.

另外还证明：关于频率的分岔问题具有无穷余维，因此该情形下的动力学分岔行为非常复杂。

Objective:To evaluate the frequence and prognosis of neurological complication following open heart surgery in the 90's.

目的：评价九十年代心脏直视手术后的神经系统并发症的发生率，严重程度以及对功能的影响。

This method can be used to single asynchronous station widely to solve the control problem of frequence and voltage.

此种方法可广泛使用于孤立运行的异步发电站，以解决频率与电压的控制问题。

As we know,the different music has the different frequence,the output of frequence which has rule can gain music that rule accordingly.

我们知道，不同的声音对应不同的频率，产生有规律的频率输出就可以得到相应规律的声音。

We choose the TMS320VC5402, digital signal processor, as the computing unit, filtering the sampled signal, truncating the harmonic whose frequence greater than 2500hz, then we use the window-interpolation FFT algorithm to get the refined frequence, amplitude, phase of harmonic in sampled voltage and current, other parameter such as harmonic ratio, active power, reactive power, power factor, three-phase unbalance can be also computed base one the result of window-interpolation FFT.

选用TMS320VC5402高速数字信号处理器作为运算单元，先对采样信号进行数字滤波，去除50次以上谐波分量，然后应用加窗双峰插值FFT算法计算电压电流的各次谐波频率、幅值和相位，以及谐波含有率、有功功率、无功功率、三相不平衡度等各项电能指标，同时利用锁相环电路硬件跟踪电网频率以减小采样失步度。

The research indicates that the method of controllable heat saving load and adjustable capacitor has the advantage of simple structure and fewer investment, it can stable the frequence and voltage better. The method, aiming to maintain the frequence, is more better. It can stabilify the frequence as well as less excursion of the voltage in the same time.

研究表明，可控热负荷加可调电容的方式结构简单、投资较少，可较好地稳定频率与电压，采用以频率为控制目标的控制效果较佳，既能很好稳定频率，又不使电压偏移太远。

The region where it produces two-stream instability is encircles by three boundaries: the outer open field lines, the nearest distance where the instability could take place (corresponding the charactistical frequence is equal to the plasma frequence), and the largest distance where the instability could take place along field lines.

可以发生双流不稳的区域是由三个边界面围成的：一是最外的开场线。一是不稳定性可以发生的最近距离(对应于曲率光子特征频率等于等离子体频率的地方)，最后是沿磁力线能够激发起双流不稳性的最大距离。

Graf, without question, is the greatest women's player in history.

格拉芙，现在，毫无疑问是女子网坛历史上最伟大的选手。

If not, you will have to look around at all your important data.

如果没有，您将需要检查所有的重要数据。